11997080 has 32 divisors (see below), whose sum is σ = 27507600. Its totient is φ = 4707456.

The previous prime is 11997071. The next prime is 11997107. The reversal of 11997080 is 8079911.

It is a self number, because there is not a number n which added to its sum of digits gives 11997080.

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, 710 + ... + 4949.

Almost surely, 2^11997080 is an apocalyptic number.

11997080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11997080 is an abundant number, since it is smaller than the sum of its proper divisors (15510520).

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

11997080 is a wasteful number, since it uses less digits than its factorization.

11997080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5723 (or 5719 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 35.

The square root of 11997080 is about 3463.6801237990. The cubic root of 11997080 is about 228.9242771954.

The spelling of 11997080 in words is "eleven million, nine hundred ninety-seven thousand, eighty".