11899668 has 24 divisors (see below), whose sum is σ = 30290400. Its totient is φ = 3605920.

The previous prime is 11899661. The next prime is 11899673. The reversal of 11899668 is 86699811.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11899661) by changing a digit.

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, 44943 + ... + 45206.

It is an arithmetic number, because the mean of its divisors is an integer number (1262100).

Almost surely, 2^11899668 is an apocalyptic number.

It is an amenable number.

11899668 is an abundant number, since it is smaller than the sum of its proper divisors (18390732).

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

11899668 is a wasteful number, since it uses less digits than its factorization.

11899668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90167 (or 90165 counting only the distinct ones).

The product of its digits is 186624, while the sum is 48.

The square root of 11899668 is about 3449.5895408005. The cubic root of 11899668 is about 228.3029982018.

The spelling of 11899668 in words is "eleven million, eight hundred ninety-nine thousand, six hundred sixty-eight".