38693953 has 2 divisors, whose sum is σ = 38693954. Its totient is φ = 38693952.

The previous prime is 38693951. The next prime is 38693987. The reversal of 38693953 is 35939683.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23107249 + 15586704 = 4807^2 + 3948^2 .

It is a cyclic number.

It is not a de Polignac number, because 38693953 - 2¹ = 38693951 is a prime.

Together with 38693951, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (38693951) 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, 19346976 + 19346977.

It is an arithmetic number, because the mean of its divisors is an integer number (19346977).

Almost surely, 2^38693953 is an apocalyptic number.

It is an amenable number.

38693953 is a deficient number, since it is larger than the sum of its proper divisors (1).

38693953 is an equidigital number, since it uses as much as digits as its factorization.

38693953 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 524880, while the sum is 46.

The square root of 38693953 is about 6220.4463666203. The cubic root of 38693953 is about 338.2317452989.

The spelling of 38693953 in words is "thirty-eight million, six hundred ninety-three thousand, nine hundred fifty-three".