11680998 has 16 divisors (see below), whose sum is σ = 26699520. Its totient is φ = 3337416.

The previous prime is 11680969. The next prime is 11681039. The reversal of 11680998 is 89908611.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 278119 = 11680998 / (1 + 1 + 6 + 8 + 0 + 9 + 9 + 8).

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 139018 + ... + 139101.

It is an arithmetic number, because the mean of its divisors is an integer number (1668720).

Almost surely, 2^11680998 is an apocalyptic number.

11680998 is an abundant number, since it is smaller than the sum of its proper divisors (15018522).

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

11680998 is a wasteful number, since it uses less digits than its factorization.

11680998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278131.

The product of its (nonzero) digits is 31104, while the sum is 42.

The square root of 11680998 is about 3417.7475038393. The cubic root of 11680998 is about 226.8959008285.

The spelling of 11680998 in words is "eleven million, six hundred eighty thousand, nine hundred ninety-eight".