11564990 has 16 divisors (see below), whose sum is σ = 21159360. Its totient is φ = 4549920.

The previous prime is 11564983. The next prime is 11565017. The reversal of 11564990 is 9946511.

It is a self number, because there is not a number n which added to its sum of digits gives 11564990.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8870 + ... + 10089.

It is an arithmetic number, because the mean of its divisors is an integer number (1322460).

Almost surely, 2^11564990 is an apocalyptic number.

11564990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11564990 is a deficient number, since it is larger than the sum of its proper divisors (9594370).

11564990 is a wasteful number, since it uses less digits than its factorization.

11564990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19027.

The product of its (nonzero) digits is 9720, while the sum is 35.

The square root of 11564990 is about 3400.7337443558. The cubic root of 11564990 is about 226.1422734306.

The spelling of 11564990 in words is "eleven million, five hundred sixty-four thousand, nine hundred ninety".