82708820 has 24 divisors (see below), whose sum is σ = 176283744. Its totient is φ = 32589216.

The previous prime is 82708819. The next prime is 82708831. The reversal of 82708820 is 2880728.

It is a congruent number.

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, 29522 + ... + 32201.

It is an arithmetic number, because the mean of its divisors is an integer number (7345156).

Almost surely, 2^82708820 is an apocalyptic number.

It is an amenable number.

82708820 is an abundant number, since it is smaller than the sum of its proper divisors (93574924).

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

82708820 is a wasteful number, since it uses less digits than its factorization.

82708820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61799 (or 61797 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 35.

The square root of 82708820 is about 9094.4389601558. The cubic root of 82708820 is about 435.6963699778.

The spelling of 82708820 in words is "eighty-two million, seven hundred eight thousand, eight hundred twenty".