82637994 has 16 divisors (see below), whose sum is σ = 170975520. Its totient is φ = 26596080.

The previous prime is 82637977. The next prime is 82637999. The reversal of 82637994 is 49973628.

It is not an unprimeable number, because it can be changed into a prime (82637999) 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, 237292 + ... + 237639.

It is an arithmetic number, because the mean of its divisors is an integer number (10685970).

Almost surely, 2^82637994 is an apocalyptic number.

82637994 is an abundant number, since it is smaller than the sum of its proper divisors (88337526).

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

82637994 is a wasteful number, since it uses less digits than its factorization.

82637994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474965.

The product of its digits is 653184, while the sum is 48.

The square root of 82637994 is about 9090.5442081319. The cubic root of 82637994 is about 435.5719679141.

The spelling of 82637994 in words is "eighty-two million, six hundred thirty-seven thousand, nine hundred ninety-four".