82366931 has 4 divisors (see below), whose sum is σ = 85207200. Its totient is φ = 79526664.

The previous prime is 82366913. The next prime is 82366939. The reversal of 82366931 is 13966328.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 82366931 - 2¹⁸ = 82104787 is a prime.

It is a super-2 number, since 2×82366931² = 13568622644717522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82366939) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1420091 + ... + 1420148.

It is an arithmetic number, because the mean of its divisors is an integer number (21301800).

Almost surely, 2^82366931 is an apocalyptic number.

82366931 is a deficient number, since it is larger than the sum of its proper divisors (2840269).

82366931 is a wasteful number, since it uses less digits than its factorization.

82366931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2840268.

The product of its digits is 46656, while the sum is 38.

The square root of 82366931 is about 9075.6228987326. The cubic root of 82366931 is about 435.0952026621.

The spelling of 82366931 in words is "eighty-two million, three hundred sixty-six thousand, nine hundred thirty-one".