64918804 has 6 divisors (see below), whose sum is σ = 113607914. Its totient is φ = 32459400.

The previous prime is 64918787. The next prime is 64918813. The reversal of 64918804 is 40881946.

It can be written as a sum of positive squares in only one way, i.e., 64834704 + 84100 = 8052^2 + 290^2 .

It is a super-5 number, since 5×64918804⁵ (a number of 40 digits) contains 55555 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8114847 + ... + 8114854.

Almost surely, 2^64918804 is an apocalyptic number.

It is an amenable number.

64918804 is a deficient number, since it is larger than the sum of its proper divisors (48689110).

64918804 is a wasteful number, since it uses less digits than its factorization.

64918804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16229705 (or 16229703 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 40.

The square root of 64918804 is about 8057.2206125934. The cubic root of 64918804 is about 401.9050872022.

The spelling of 64918804 in words is "sixty-four million, nine hundred eighteen thousand, eight hundred four".