65507964 has 24 divisors (see below), whose sum is σ = 153133008. Its totient is φ = 21795840.

The previous prime is 65507957. The next prime is 65507983. The reversal of 65507964 is 46970556.

It is a congruent number.

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, 2194 + ... + 11654.

It is an arithmetic number, because the mean of its divisors is an integer number (6380542).

Almost surely, 2^65507964 is an apocalyptic number.

It is an amenable number.

65507964 is an abundant number, since it is smaller than the sum of its proper divisors (87625044).

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

65507964 is a wasteful number, since it uses less digits than its factorization.

65507964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10045 (or 10043 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 42.

The square root of 65507964 is about 8093.6990307275. The cubic root of 65507964 is about 403.1172356656.

The spelling of 65507964 in words is "sixty-five million, five hundred seven thousand, nine hundred sixty-four".