11663994 has 16 divisors (see below), whose sum is σ = 23395968. Its totient is φ = 3876672.

The previous prime is 11663983. The next prime is 11664017. The reversal of 11663994 is 49936611.

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, 447 + ... + 4850.

It is an arithmetic number, because the mean of its divisors is an integer number (1462248).

Almost surely, 2^11663994 is an apocalyptic number.

11663994 is an abundant number, since it is smaller than the sum of its proper divisors (11731974).

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

11663994 is a wasteful number, since it uses less digits than its factorization.

11663994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5669.

The product of its digits is 34992, while the sum is 39.

The square root of 11663994 is about 3415.2589945713. The cubic root of 11663994 is about 226.7857500946.

The spelling of 11663994 in words is "eleven million, six hundred sixty-three thousand, nine hundred ninety-four".