65972964 has 24 divisors (see below), whose sum is σ = 156462208. Its totient is φ = 21630240.

The previous prime is 65972911. The next prime is 65972981. The reversal of 65972964 is 46927956.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44332 + ... + 45795.

Almost surely, 2^65972964 is an apocalyptic number.

It is an amenable number.

65972964 is an abundant number, since it is smaller than the sum of its proper divisors (90489244).

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

65972964 is a wasteful number, since it uses less digits than its factorization.

65972964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90195 (or 90193 counting only the distinct ones).

The product of its digits is 816480, while the sum is 48.

The square root of 65972964 is about 8122.3742834223. The cubic root of 65972964 is about 404.0688132302.

The spelling of 65972964 in words is "sixty-five million, nine hundred seventy-two thousand, nine hundred sixty-four".