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38487697 is a prime number
BaseRepresentation
bin1001001011010…
…0011010010001
32200102101012021
42102310122101
534323101242
63452531441
7645066013
oct222643221
980371167
1038487697
111a7a8416
1210a80b81
137c873b1
14517c1b3
1535a3b67
hex24b4691

38487697 has 2 divisors, whose sum is σ = 38487698. Its totient is φ = 38487696.

The previous prime is 38487679. The next prime is 38487703. The reversal of 38487697 is 79678483.

It is a happy number.

Together with previous prime (38487679) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37896336 + 591361 = 6156^2 + 769^2 .

It is an emirp because it is prime and its reverse (79678483) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 38487697 - 223 = 30099089 is a prime.

It is not a weakly prime, because it can be changed into another prime (38487607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19243848 + 19243849.

It is an arithmetic number, because the mean of its divisors is an integer number (19243849).

Almost surely, 238487697 is an apocalyptic number.

It is an amenable number.

38487697 is a deficient number, since it is larger than the sum of its proper divisors (1).

38487697 is an equidigital number, since it uses as much as digits as its factorization.

38487697 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2032128, while the sum is 52.

The square root of 38487697 is about 6203.8453397873. The cubic root of 38487697 is about 337.6296990309.

It can be divided in two parts, 3848 and 7697, that multiplied together give a triangular number (29618056 = T7696).

The spelling of 38487697 in words is "thirty-eight million, four hundred eighty-seven thousand, six hundred ninety-seven".