11638982 has 32 divisors (see below), whose sum is σ = 19958400. Its totient is φ = 5056128.

The previous prime is 11638973. The next prime is 11638993. The reversal of 11638982 is 28983611.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27569 + ... + 27987.

It is an arithmetic number, because the mean of its divisors is an integer number (623700).

Almost surely, 2^11638982 is an apocalyptic number.

11638982 is a deficient number, since it is larger than the sum of its proper divisors (8319418).

11638982 is a wasteful number, since it uses less digits than its factorization.

11638982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500.

The product of its digits is 20736, while the sum is 38.

The square root of 11638982 is about 3411.5952280422. The cubic root of 11638982 is about 226.6235293727.

The spelling of 11638982 in words is "eleven million, six hundred thirty-eight thousand, nine hundred eighty-two".