64634076 has 36 divisors (see below), whose sum is σ = 175949592. Its totient is φ = 19887264.

The previous prime is 64634047. The next prime is 64634093. The reversal of 64634076 is 67043646.

64634076 is a `hidden beast` number, since 646 + 3 + 4 + 0 + 7 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 64634076.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 68586 + ... + 69521.

Almost surely, 2^64634076 is an apocalyptic number.

It is an amenable number.

64634076 is an abundant number, since it is smaller than the sum of its proper divisors (111315516).

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

64634076 is a wasteful number, since it uses less digits than its factorization.

64634076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138130 (or 138125 counting only the distinct ones).

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

The square root of 64634076 is about 8039.5320759358. The cubic root of 64634076 is about 401.3166529738.

It can be divided in two parts, 646340 and 76, that added together give a square (646416 = 804²).

The spelling of 64634076 in words is "sixty-four million, six hundred thirty-four thousand, seventy-six".