11889868 has 12 divisors (see below), whose sum is σ = 22031352. Its totient is φ = 5595200.

The previous prime is 11889859. The next prime is 11889869. The reversal of 11889868 is 86898811.

It is a super-2 number, since 2×11889868² = 282737922114848, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11889869) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 87358 + ... + 87493.

It is an arithmetic number, because the mean of its divisors is an integer number (1835946).

Almost surely, 2^11889868 is an apocalyptic number.

It is an amenable number.

11889868 is a deficient number, since it is larger than the sum of its proper divisors (10141484).

11889868 is a wasteful number, since it uses less digits than its factorization.

11889868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174872 (or 174870 counting only the distinct ones).

The product of its digits is 221184, while the sum is 49.

The square root of 11889868 is about 3448.1687893721. The cubic root of 11889868 is about 228.2403078293.

The spelling of 11889868 in words is "eleven million, eight hundred eighty-nine thousand, eight hundred sixty-eight".