11997568 has 32 divisors (see below), whose sum is σ = 26077320. Its totient is φ = 5452800.

The previous prime is 11997553. The next prime is 11997577. The reversal of 11997568 is 86579911.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2853 + ... + 5668.

Almost surely, 2^11997568 is an apocalyptic number.

It is an amenable number.

11997568 is an abundant number, since it is smaller than the sum of its proper divisors (14079752).

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

11997568 is an equidigital number, since it uses as much as digits as its factorization.

11997568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8546 (or 8534 counting only the distinct ones).

The product of its digits is 136080, while the sum is 46.

The square root of 11997568 is about 3463.7505683868. The cubic root of 11997568 is about 228.9273811044.

The spelling of 11997568 in words is "eleven million, nine hundred ninety-seven thousand, five hundred sixty-eight".