82516931 has 6 divisors (see below), whose sum is σ = 95989140. Its totient is φ = 70728756.

The previous prime is 82516921. The next prime is 82516991. The reversal of 82516931 is 13961528.

It is not a de Polignac number, because 82516931 - 2¹⁰ = 82515907 is a prime.

It is a super-2 number, since 2×82516931² = 13618087803317522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 82516891 and 82516900.

It is not an unprimeable number, because it can be changed into a prime (82516921) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 841961 + ... + 842058.

It is an arithmetic number, because the mean of its divisors is an integer number (15998190).

Almost surely, 2^82516931 is an apocalyptic number.

82516931 is a deficient number, since it is larger than the sum of its proper divisors (13472209).

82516931 is a wasteful number, since it uses less digits than its factorization.

82516931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1684033 (or 1684026 counting only the distinct ones).

The product of its digits is 12960, while the sum is 35.

The square root of 82516931 is about 9083.8830353544. The cubic root of 82516931 is about 435.3591625694.

The spelling of 82516931 in words is "eighty-two million, five hundred sixteen thousand, nine hundred thirty-one".