72808984 has 16 divisors (see below), whose sum is σ = 142452720. Its totient is φ = 34821600.

The previous prime is 72808963. The next prime is 72808993. The reversal of 72808984 is 48980827.

It is a super-2 number, since 2×72808984² = 10602296302224512, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (46).

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, 197667 + ... + 198034.

It is an arithmetic number, because the mean of its divisors is an integer number (8903295).

Almost surely, 2^72808984 is an apocalyptic number.

It is an amenable number.

72808984 is a deficient number, since it is larger than the sum of its proper divisors (69643736).

72808984 is a wasteful number, since it uses less digits than its factorization.

72808984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395730 (or 395726 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 46.

The square root of 72808984 is about 8532.8180573595. The cubic root of 72808984 is about 417.5690712452.

The spelling of 72808984 in words is "seventy-two million, eight hundred eight thousand, nine hundred eighty-four".