65372920 has 32 divisors (see below), whose sum is σ = 154832400. Its totient is φ = 24772608.

The previous prime is 65372899. The next prime is 65372933. The reversal of 65372920 is 2927356.

It is a happy number.

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, 42249 + ... + 43768.

Almost surely, 2^65372920 is an apocalyptic number.

It is an amenable number.

65372920 is an abundant number, since it is smaller than the sum of its proper divisors (89459480).

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

65372920 is a wasteful number, since it uses less digits than its factorization.

65372920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86047 (or 86043 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 34.

The square root of 65372920 is about 8085.3521877529. The cubic root of 65372920 is about 402.8400377407.

The spelling of 65372920 in words is "sixty-five million, three hundred seventy-two thousand, nine hundred twenty".