65723264 has 32 divisors (see below), whose sum is σ = 133989240. Its totient is φ = 32094720.

The previous prime is 65723263. The next prime is 65723279. The reversal of 65723264 is 46232756.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65723263) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 467 + ... + 11474.

Almost surely, 2^65723264 is an apocalyptic number.

65723264 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

65723264 is an abundant number, since it is smaller than the sum of its proper divisors (68265976).

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

65723264 is a wasteful number, since it uses less digits than its factorization.

65723264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11998 (or 11986 counting only the distinct ones).

The product of its digits is 60480, while the sum is 35.

The square root of 65723264 is about 8106.9885900993. The cubic root of 65723264 is about 403.5583842198.

The spelling of 65723264 in words is "sixty-five million, seven hundred twenty-three thousand, two hundred sixty-four".