11997560 has 32 divisors (see below), whose sum is σ = 27110160. Its totient is φ = 4778496.

The previous prime is 11997553. The next prime is 11997577. The reversal of 11997560 is 6579911.

11997560 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11792 + ... + 12768.

Almost surely, 2^11997560 is an apocalyptic number.

11997560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11997560 is an abundant number, since it is smaller than the sum of its proper divisors (15112600).

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

11997560 is a wasteful number, since it uses less digits than its factorization.

11997560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1295 (or 1291 counting only the distinct ones).

The product of its (nonzero) digits is 17010, while the sum is 38.

The square root of 11997560 is about 3463.7494135691. The cubic root of 11997560 is about 228.9273302213.

It can be divided in two parts, 119 and 97560, that added together give a palindrome (97679).

The spelling of 11997560 in words is "eleven million, nine hundred ninety-seven thousand, five hundred sixty".