65765964 has 24 divisors (see below), whose sum is σ = 167404608. Its totient is φ = 19929040.

The previous prime is 65765923. The next prime is 65765971. The reversal of 65765964 is 46956756.

65765964 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 248982 + ... + 249245.

It is an arithmetic number, because the mean of its divisors is an integer number (6975192).

Almost surely, 2^65765964 is an apocalyptic number.

It is an amenable number.

65765964 is an abundant number, since it is smaller than the sum of its proper divisors (101638644).

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

65765964 is a wasteful number, since it uses less digits than its factorization.

65765964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 498245 (or 498243 counting only the distinct ones).

The product of its digits is 1360800, while the sum is 48.

The square root of 65765964 is about 8109.6216927795. The cubic root of 65765964 is about 403.6457617655.

The spelling of 65765964 in words is "sixty-five million, seven hundred sixty-five thousand, nine hundred sixty-four".