11688998 has 16 divisors (see below), whose sum is σ = 17902080. Its totient is φ = 5723016.

The previous prime is 11688983. The next prime is 11689039. The reversal of 11688998 is 89988611.

It is a happy number.

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 7 ways as a sum of consecutive naturals, for example, 26165 + ... + 26607.

It is an arithmetic number, because the mean of its divisors is an integer number (1118880).

Almost surely, 2^11688998 is an apocalyptic number.

11688998 is a deficient number, since it is larger than the sum of its proper divisors (6213082).

11688998 is a wasteful number, since it uses less digits than its factorization.

11688998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 691.

The product of its digits is 248832, while the sum is 50.

The square root of 11688998 is about 3418.9176649928. The cubic root of 11688998 is about 226.9476872991.

The spelling of 11688998 in words is "eleven million, six hundred eighty-eight thousand, nine hundred ninety-eight".