636982 has 8 divisors (see below), whose sum is σ = 959616. Its totient is φ = 317112.

The previous prime is 636967. The next prime is 636983. The reversal of 636982 is 289636.

It is a happy number.

636982 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (636983) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43 + ... + 1129.

It is an arithmetic number, because the mean of its divisors is an integer number (119952).

636982 is a Friedman number, since it can be written as 926+86^3, using all its digits and the basic arithmetic operations.

2⁶³⁶⁹⁸² is an apocalyptic number.

636982 is a deficient number, since it is larger than the sum of its proper divisors (322634).

636982 is a wasteful number, since it uses less digits than its factorization.

636982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1382.

The product of its digits is 15552, while the sum is 34.

The square root of 636982 is about 798.1115210295. Note that the first 3 decimals coincide. The cubic root of 636982 is about 86.0417140342.

The spelling of 636982 in words is "six hundred thirty-six thousand, nine hundred eighty-two".