72782860 has 12 divisors (see below), whose sum is σ = 152844048. Its totient is φ = 29113136.

The previous prime is 72782819. The next prime is 72782861. The reversal of 72782860 is 6828727.

It is not an unprimeable number, because it can be changed into a prime (72782861) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1819552 + ... + 1819591.

It is an arithmetic number, because the mean of its divisors is an integer number (12737004).

Almost surely, 2^72782860 is an apocalyptic number.

It is an amenable number.

72782860 is an abundant number, since it is smaller than the sum of its proper divisors (80061188).

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

72782860 is a wasteful number, since it uses less digits than its factorization.

72782860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3639152 (or 3639150 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 40.

The square root of 72782860 is about 8531.2871244613. The cubic root of 72782860 is about 417.5191237490.

The spelling of 72782860 in words is "seventy-two million, seven hundred eighty-two thousand, eight hundred sixty".