82731887 has 16 divisors (see below), whose sum is σ = 96966720. Its totient is φ = 69119232.

The previous prime is 82731863. The next prime is 82731893. The reversal of 82731887 is 78813728.

It is not a de Polignac number, because 82731887 - 2⁸ = 82731631 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82731487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63539 + ... + 64827.

It is an arithmetic number, because the mean of its divisors is an integer number (6060420).

Almost surely, 2^82731887 is an apocalyptic number.

82731887 is a deficient number, since it is larger than the sum of its proper divisors (14234833).

82731887 is a wasteful number, since it uses less digits than its factorization.

82731887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1522.

The product of its digits is 150528, while the sum is 44.

The square root of 82731887 is about 9095.7070643244. The cubic root of 82731887 is about 435.7368705919.

The spelling of 82731887 in words is "eighty-two million, seven hundred thirty-one thousand, eight hundred eighty-seven".