64764630 has 64 divisors (see below), whose sum is σ = 197383680. Its totient is φ = 14802912.

The previous prime is 64764629. The next prime is 64764641. The reversal of 64764630 is 3646746.

64764630 is a `hidden beast` number, since 6 + 4 + 7 + 646 + 3 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15244 + ... + 19023.

It is an arithmetic number, because the mean of its divisors is an integer number (3084120).

Almost surely, 2^64764630 is an apocalyptic number.

64764630 is an abundant number, since it is smaller than the sum of its proper divisors (132619050).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64764630 is a wasteful number, since it uses less digits than its factorization.

64764630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34290 (or 34284 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 36.

The square root of 64764630 is about 8047.6474823392. The cubic root of 64764630 is about 401.5866769851.

The spelling of 64764630 in words is "sixty-four million, seven hundred sixty-four thousand, six hundred thirty".