38489609 has 2 divisors, whose sum is σ = 38489610. Its totient is φ = 38489608.

The previous prime is 38489551. The next prime is 38489623. The reversal of 38489609 is 90698483.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19758025 + 18731584 = 4445^2 + 4328^2 .

It is an emirp because it is prime and its reverse (90698483) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 38489609 - 2²⁴ = 21712393 is a prime.

It is not a weakly prime, because it can be changed into another prime (38489639) 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, 19244804 + 19244805.

It is an arithmetic number, because the mean of its divisors is an integer number (19244805).

Almost surely, 2^38489609 is an apocalyptic number.

It is an amenable number.

38489609 is a deficient number, since it is larger than the sum of its proper divisors (1).

38489609 is an equidigital number, since it uses as much as digits as its factorization.

38489609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 373248, while the sum is 47.

The square root of 38489609 is about 6203.9994358478. Note that the first 3 decimals coincide. The cubic root of 38489609 is about 337.6352898850.

The spelling of 38489609 in words is "thirty-eight million, four hundred eighty-nine thousand, six hundred nine".