72819808 has 12 divisors (see below), whose sum is σ = 143364060. Its totient is φ = 36409888.

The previous prime is 72819797. The next prime is 72819829. The reversal of 72819808 is 80891827.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1137778 + ... + 1137841.

It is an arithmetic number, because the mean of its divisors is an integer number (11947005).

Almost surely, 2^72819808 is an apocalyptic number.

It is an amenable number.

72819808 is a deficient number, since it is larger than the sum of its proper divisors (70544252).

72819808 is a wasteful number, since it uses less digits than its factorization.

72819808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2275629 (or 2275621 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 43.

The square root of 72819808 is about 8533.4522908375. The cubic root of 72819808 is about 417.5897625730.

The spelling of 72819808 in words is "seventy-two million, eight hundred nineteen thousand, eight hundred eight".