64716964 has 48 divisors (see below), whose sum is σ = 132590080. Its totient is φ = 27371520.

The previous prime is 64716947. The next prime is 64716991. The reversal of 64716964 is 46961746.

It is a self number, because there is not a number n which added to its sum of digits gives 64716964.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29572 + ... + 31684.

Almost surely, 2^64716964 is an apocalyptic number.

It is an amenable number.

64716964 is an abundant number, since it is smaller than the sum of its proper divisors (67873116).

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

64716964 is a wasteful number, since it uses less digits than its factorization.

64716964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2180 (or 2178 counting only the distinct ones).

The product of its digits is 217728, while the sum is 43.

The square root of 64716964 is about 8044.6854506562. The cubic root of 64716964 is about 401.4881317937.

The spelling of 64716964 in words is "sixty-four million, seven hundred sixteen thousand, nine hundred sixty-four".