82890874 has 32 divisors (see below), whose sum is σ = 141315840. Its totient is φ = 36120000.

The previous prime is 82890839. The next prime is 82890883. The reversal of 82890874 is 47809828.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 109999 + ... + 110749.

It is an arithmetic number, because the mean of its divisors is an integer number (4416120).

Almost surely, 2^82890874 is an apocalyptic number.

82890874 is a deficient number, since it is larger than the sum of its proper divisors (58424966).

82890874 is a wasteful number, since it uses less digits than its factorization.

82890874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 966.

The product of its (nonzero) digits is 258048, while the sum is 46.

The square root of 82890874 is about 9104.4425419682. The cubic root of 82890874 is about 436.0158124894.

The spelling of 82890874 in words is "eighty-two million, eight hundred ninety thousand, eight hundred seventy-four".