64625404 has 6 divisors (see below), whose sum is σ = 113094464. Its totient is φ = 32312700.

The previous prime is 64625401. The next prime is 64625447. The reversal of 64625404 is 40452646.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64625401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8078172 + ... + 8078179.

Almost surely, 2^64625404 is an apocalyptic number.

It is an amenable number.

64625404 is a deficient number, since it is larger than the sum of its proper divisors (48469060).

64625404 is a wasteful number, since it uses less digits than its factorization.

64625404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16156355 (or 16156353 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 31.

The square root of 64625404 is about 8038.9927229722. The cubic root of 64625404 is about 401.2987038573.

The spelling of 64625404 in words is "sixty-four million, six hundred twenty-five thousand, four hundred four".