82700312 has 32 divisors (see below), whose sum is σ = 168499200. Its totient is φ = 37908000.

The previous prime is 82700297. The next prime is 82700329. The reversal of 82700312 is 21300728.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4064 + ... + 13487.

It is an arithmetic number, because the mean of its divisors is an integer number (5265600).

Almost surely, 2^82700312 is an apocalyptic number.

It is an amenable number.

82700312 is an abundant number, since it is smaller than the sum of its proper divisors (85798888).

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

82700312 is a wasteful number, since it uses less digits than its factorization.

82700312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17607 (or 17603 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 82700312 is about 9093.9711897498. The cubic root of 82700312 is about 435.6814298871.

The spelling of 82700312 in words is "eighty-two million, seven hundred thousand, three hundred twelve".