11699880 has 32 divisors (see below), whose sum is σ = 35100000. Its totient is φ = 3119936.

The previous prime is 11699879. The next prime is 11699899. The reversal of 11699880 is 8899611.

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, 48630 + ... + 48869.

It is an arithmetic number, because the mean of its divisors is an integer number (1096875).

Almost surely, 2^11699880 is an apocalyptic number.

11699880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11699880 is an abundant number, since it is smaller than the sum of its proper divisors (23400120).

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

11699880 is a wasteful number, since it uses less digits than its factorization.

11699880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97513 (or 97509 counting only the distinct ones).

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

The square root of 11699880 is about 3420.5087340921. The cubic root of 11699880 is about 227.0180919294.

The spelling of 11699880 in words is "eleven million, six hundred ninety-nine thousand, eight hundred eighty".