82992171 has 16 divisors (see below), whose sum is σ = 120499200. Its totient is φ = 50607648.

The previous prime is 82992157. The next prime is 82992179. The reversal of 82992171 is 17129928.

It is not a de Polignac number, because 82992171 - 2¹⁰ = 82991147 is a prime.

It is not an unprimeable number, because it can be changed into a prime (82992179) 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, 23451 + ... + 26756.

It is an arithmetic number, because the mean of its divisors is an integer number (7531200).

Almost surely, 2^82992171 is an apocalyptic number.

82992171 is a deficient number, since it is larger than the sum of its proper divisors (37507029).

82992171 is a wasteful number, since it uses less digits than its factorization.

82992171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50258.

The product of its digits is 18144, while the sum is 39.

The square root of 82992171 is about 9110.0038968159. The cubic root of 82992171 is about 436.1933515932.

The spelling of 82992171 in words is "eighty-two million, nine hundred ninety-two thousand, one hundred seventy-one".