82690938 has 24 divisors (see below), whose sum is σ = 195451776. Its totient is φ = 25057800.

The previous prime is 82690921. The next prime is 82690939. The reversal of 82690938 is 83909628.

It is a junction number, because it is equal to n+sod(n) for n = 82690893 and 82690902.

It is not an unprimeable number, because it can be changed into a prime (82690939) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 208618 + ... + 209013.

It is an arithmetic number, because the mean of its divisors is an integer number (8143824).

Almost surely, 2^82690938 is an apocalyptic number.

82690938 is an abundant number, since it is smaller than the sum of its proper divisors (112760838).

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

82690938 is a wasteful number, since it uses less digits than its factorization.

82690938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417650 (or 417647 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The square root of 82690938 is about 9093.4557787455. The cubic root of 82690938 is about 435.6649679095.

The spelling of 82690938 in words is "eighty-two million, six hundred ninety thousand, nine hundred thirty-eight".