11935881 has 12 divisors (see below), whose sum is σ = 17484480. Its totient is φ = 7844760.

The previous prime is 11935871. The next prime is 11935901. The reversal of 11935881 is 18853911.

It is not a de Polignac number, because 11935881 - 2⁶ = 11935817 is a prime.

It is a super-2 number, since 2×11935881² = 284930510492322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11935801) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8701 + ... + 9978.

It is an arithmetic number, because the mean of its divisors is an integer number (1457040).

Almost surely, 2^11935881 is an apocalyptic number.

It is an amenable number.

11935881 is a deficient number, since it is larger than the sum of its proper divisors (5548599).

11935881 is a wasteful number, since it uses less digits than its factorization.

11935881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18756 (or 18753 counting only the distinct ones).

The product of its digits is 8640, while the sum is 36.

The square root of 11935881 is about 3454.8344388697. The cubic root of 11935881 is about 228.5343537895.

The spelling of 11935881 in words is "eleven million, nine hundred thirty-five thousand, eight hundred eighty-one".