82871886 has 16 divisors (see below), whose sum is σ = 166003200. Its totient is φ = 27580728.

The previous prime is 82871881. The next prime is 82871909. The reversal of 82871886 is 68817828.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82871881) 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, 6526 + ... + 14433.

It is an arithmetic number, because the mean of its divisors is an integer number (10375200).

Almost surely, 2^82871886 is an apocalyptic number.

82871886 is an abundant number, since it is smaller than the sum of its proper divisors (83131314).

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

82871886 is a wasteful number, since it uses less digits than its factorization.

82871886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21623.

The product of its digits is 344064, while the sum is 48.

The square root of 82871886 is about 9103.3996946196. The cubic root of 82871886 is about 435.9825169041.

The spelling of 82871886 in words is "eighty-two million, eight hundred seventy-one thousand, eight hundred eighty-six".