82491876 has 36 divisors (see below), whose sum is σ = 210555072. Its totient is φ = 27229104.

The previous prime is 82491859. The next prime is 82491881. The reversal of 82491876 is 67819428.

82491876 is a `hidden beast` number, since 82 + 491 + 87 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7416 + ... + 14831.

It is an arithmetic number, because the mean of its divisors is an integer number (5848752).

Almost surely, 2^82491876 is an apocalyptic number.

82491876 is the 7416-th pentagonal number.

It is an amenable number.

82491876 is an abundant number, since it is smaller than the sum of its proper divisors (128063196).

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

82491876 is a wasteful number, since it uses less digits than its factorization.

82491876 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22360 (or 22355 counting only the distinct ones).

The product of its digits is 193536, while the sum is 45.

The square root of 82491876 is about 9082.5038398010. The cubic root of 82491876 is about 435.3150947324.

The spelling of 82491876 in words is "eighty-two million, four hundred ninety-one thousand, eight hundred seventy-six".