72764886 has 16 divisors (see below), whose sum is σ = 150548400. Its totient is φ = 23418528.

The previous prime is 72764849. The next prime is 72764897. The reversal of 72764886 is 68846727.

It is a Curzon 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, 208921 + ... + 209268.

It is an arithmetic number, because the mean of its divisors is an integer number (9409275).

Almost surely, 2^72764886 is an apocalyptic number.

72764886 is an abundant number, since it is smaller than the sum of its proper divisors (77783514).

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

72764886 is a wasteful number, since it uses less digits than its factorization.

72764886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418223.

The product of its digits is 903168, while the sum is 48.

The square root of 72764886 is about 8530.2336427556. The cubic root of 72764886 is about 417.4847516154.

The spelling of 72764886 in words is "seventy-two million, seven hundred sixty-four thousand, eight hundred eighty-six".