65953864 has 32 divisors (see below), whose sum is σ = 134380800. Its totient is φ = 30231360.

The previous prime is 65953847. The next prime is 65953879. The reversal of 65953864 is 46835956.

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, 2287 + ... + 11710.

It is an arithmetic number, because the mean of its divisors is an integer number (4199400).

Almost surely, 2^65953864 is an apocalyptic number.

It is an amenable number.

65953864 is an abundant number, since it is smaller than the sum of its proper divisors (68426936).

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

65953864 is a wasteful number, since it uses less digits than its factorization.

65953864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14053 (or 14049 counting only the distinct ones).

The product of its digits is 777600, while the sum is 46.

The square root of 65953864 is about 8121.1984337289. The cubic root of 65953864 is about 404.0298151378.

The spelling of 65953864 in words is "sixty-five million, nine hundred fifty-three thousand, eight hundred sixty-four".