82920313 has 16 divisors (see below), whose sum is σ = 104094720. Its totient is φ = 64403856.

The previous prime is 82920307. The next prime is 82920317. The reversal of 82920313 is 31302928.

It is a cyclic number.

It is not a de Polignac number, because 82920313 - 2⁵ = 82920281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82920317) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10495 + ... + 16612.

It is an arithmetic number, because the mean of its divisors is an integer number (6505920).

Almost surely, 2^82920313 is an apocalyptic number.

It is an amenable number.

82920313 is a deficient number, since it is larger than the sum of its proper divisors (21174407).

82920313 is a wasteful number, since it uses less digits than its factorization.

82920313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27156.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 82920313 is about 9106.0591366408. The cubic root of 82920313 is about 436.0674239219.

The spelling of 82920313 in words is "eighty-two million, nine hundred twenty thousand, three hundred thirteen".