11999888 has 10 divisors (see below), whose sum is σ = 23249814. Its totient is φ = 5999936.

The previous prime is 11999879. The next prime is 11999903. The reversal of 11999888 is 88899911.

It can be written as a sum of positive squares in only one way, i.e., 8111104 + 3888784 = 2848^2 + 1972^2 .

It is a zygodrome in base 10.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 374981 + ... + 375012.

Almost surely, 2^11999888 is an apocalyptic number.

It is an amenable number.

11999888 is a deficient number, since it is larger than the sum of its proper divisors (11249926).

11999888 is an equidigital number, since it uses as much as digits as its factorization.

11999888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 750001 (or 749995 counting only the distinct ones).

The product of its digits is 373248, while the sum is 53.

The square root of 11999888 is about 3464.0854492925. The cubic root of 11999888 is about 228.9421362418.

The spelling of 11999888 in words is "eleven million, nine hundred ninety-nine thousand, eight hundred eighty-eight".