72808860 has 24 divisors (see below), whose sum is σ = 203864976. Its totient is φ = 19415680.

The previous prime is 72808843. The next prime is 72808861. The reversal of 72808860 is 6880827.

It is a super-2 number, since 2×72808860² = 10602260188999200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72808861) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 606681 + ... + 606800.

It is an arithmetic number, because the mean of its divisors is an integer number (8494374).

Almost surely, 2^72808860 is an apocalyptic number.

It is an amenable number.

72808860 is an abundant number, since it is smaller than the sum of its proper divisors (131056116).

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

72808860 is a wasteful number, since it uses less digits than its factorization.

72808860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1213493 (or 1213491 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 39.

The square root of 72808860 is about 8532.8107912926. The cubic root of 72808860 is about 417.5688341930.

The spelling of 72808860 in words is "seventy-two million, eight hundred eight thousand, eight hundred sixty".