72869312 has 28 divisors (see below), whose sum is σ = 144962880. Its totient is φ = 36343296.

The previous prime is 72869311. The next prime is 72869347. The reversal of 72869312 is 21396827.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72869311) by changing a digit.

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, 29468 + ... + 31844.

Almost surely, 2^72869312 is an apocalyptic number.

It is an amenable number.

72869312 is a deficient number, since it is larger than the sum of its proper divisors (72093568).

72869312 is a wasteful number, since it uses less digits than its factorization.

72869312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2868 (or 2858 counting only the distinct ones).

The product of its digits is 36288, while the sum is 38.

The square root of 72869312 is about 8536.3523826046. The cubic root of 72869312 is about 417.6843690704.

The spelling of 72869312 in words is "seventy-two million, eight hundred sixty-nine thousand, three hundred twelve".