82619994 has 32 divisors (see below), whose sum is σ = 167454720. Its totient is φ = 27173952.

The previous prime is 82619989. The next prime is 82620007. The reversal of 82619994 is 49991628.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 215527 + ... + 215909.

It is an arithmetic number, because the mean of its divisors is an integer number (5232960).

Almost surely, 2^82619994 is an apocalyptic number.

82619994 is an abundant number, since it is smaller than the sum of its proper divisors (84834726).

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

82619994 is a wasteful number, since it uses less digits than its factorization.

82619994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 774.

The product of its digits is 279936, while the sum is 48.

The square root of 82619994 is about 9089.5541144767. The cubic root of 82619994 is about 435.5403405542.

The spelling of 82619994 in words is "eighty-two million, six hundred nineteen thousand, nine hundred ninety-four".