11187994 has 8 divisors (see below), whose sum is σ = 16885440. Its totient is φ = 5559516.

The previous prime is 11187983. The next prime is 11188007. The reversal of 11187994 is 49978111.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16834 + ... + 17485.

It is an arithmetic number, because the mean of its divisors is an integer number (2110680).

Almost surely, 2^11187994 is an apocalyptic number.

11187994 is a deficient number, since it is larger than the sum of its proper divisors (5697446).

11187994 is a wasteful number, since it uses less digits than its factorization.

11187994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34484.

The product of its digits is 18144, while the sum is 40.

The square root of 11187994 is about 3344.8458858369. The cubic root of 11187994 is about 223.6578135265.

The spelling of 11187994 in words is "eleven million, one hundred eighty-seven thousand, nine hundred ninety-four".