82080812 has 24 divisors (see below), whose sum is σ = 157090752. Its totient is φ = 37216400.

The previous prime is 82080809. The next prime is 82080821. The reversal of 82080812 is 21808028.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17387 + ... + 21597.

It is an arithmetic number, because the mean of its divisors is an integer number (6545448).

Almost surely, 2^82080812 is an apocalyptic number.

It is an amenable number.

82080812 is a deficient number, since it is larger than the sum of its proper divisors (75009940).

82080812 is a wasteful number, since it uses less digits than its factorization.

82080812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4669 (or 4667 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 29.

The square root of 82080812 is about 9059.8461355588. The cubic root of 82080812 is about 434.5908197019.

The spelling of 82080812 in words is "eighty-two million, eighty thousand, eight hundred twelve".