82931838 has 16 divisors (see below), whose sum is σ = 180942336. Its totient is φ = 25130840.

The previous prime is 82931833. The next prime is 82931867. The reversal of 82931838 is 83813928.

It is a self number, because there is not a number n which added to its sum of digits gives 82931838.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82931833) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 628206 + ... + 628337.

It is an arithmetic number, because the mean of its divisors is an integer number (11308896).

Almost surely, 2^82931838 is an apocalyptic number.

82931838 is an abundant number, since it is smaller than the sum of its proper divisors (98010498).

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

82931838 is a wasteful number, since it uses less digits than its factorization.

82931838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1256559.

The product of its digits is 82944, while the sum is 42.

The square root of 82931838 is about 9106.6919350552. The cubic root of 82931838 is about 436.0876258244.

The spelling of 82931838 in words is "eighty-two million, nine hundred thirty-one thousand, eight hundred thirty-eight".