71753664 has 28 divisors (see below), whose sum is σ = 189848744. Its totient is φ = 23917824.

The previous prime is 71753657. The next prime is 71753681. The reversal of 71753664 is 46635717.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 186667 + ... + 187050.

Almost surely, 2^71753664 is an apocalyptic number.

It is an amenable number.

71753664 is an abundant number, since it is smaller than the sum of its proper divisors (118095080).

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

71753664 is a wasteful number, since it uses less digits than its factorization.

71753664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373732 (or 373722 counting only the distinct ones).

The product of its digits is 105840, while the sum is 39.

The square root of 71753664 is about 8470.7534493692. The cubic root of 71753664 is about 415.5417784946.

The spelling of 71753664 in words is "seventy-one million, seven hundred fifty-three thousand, six hundred sixty-four".