38653864 has 8 divisors (see below), whose sum is σ = 72476010. Its totient is φ = 19326928.

The previous prime is 38653859. The next prime is 38653913. The reversal of 38653864 is 46835683.

It can be written as a sum of positive squares in only one way, i.e., 19731364 + 18922500 = 4442^2 + 4350^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 38653864.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2415859 + ... + 2415874.

Almost surely, 2^38653864 is an apocalyptic number.

It is an amenable number.

38653864 is a deficient number, since it is larger than the sum of its proper divisors (33822146).

38653864 is a wasteful number, since it uses less digits than its factorization.

38653864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4831739 (or 4831735 counting only the distinct ones).

The product of its digits is 414720, while the sum is 43.

The square root of 38653864 is about 6217.2231743762. The cubic root of 38653864 is about 338.1148962237.

The spelling of 38653864 in words is "thirty-eight million, six hundred fifty-three thousand, eight hundred sixty-four".