72789832 has 16 divisors (see below), whose sum is σ = 136678140. Its totient is φ = 36342336.

The previous prime is 72789823. The next prime is 72789907. The reversal of 72789832 is 23898727.

It can be written as a sum of positive squares in 2 ways, for example, as 69455556 + 3334276 = 8334^2 + 1826^2 .

It is an alternating number because its digits alternate between odd and even.

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, 343 + ... + 12070.

Almost surely, 2^72789832 is an apocalyptic number.

It is an amenable number.

72789832 is a deficient number, since it is larger than the sum of its proper divisors (63888308).

72789832 is a wasteful number, since it uses less digits than its factorization.

72789832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13152 (or 13148 counting only the distinct ones).

The product of its digits is 338688, while the sum is 46.

The square root of 72789832 is about 8531.6957282829. The cubic root of 72789832 is about 417.5324549573.

The spelling of 72789832 in words is "seventy-two million, seven hundred eighty-nine thousand, eight hundred thirty-two".