11938931 has 8 divisors (see below), whose sum is σ = 12288144. Its totient is φ = 11594880.

The previous prime is 11938919. The next prime is 11938933. The reversal of 11938931 is 13983911.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11938931 - 2¹⁸ = 11676787 is a prime.

It is a super-2 number, since 2×11938931² = 285076146845522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11938891 and 11938900.

It is not an unprimeable number, because it can be changed into a prime (11938933) 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 7 ways as a sum of consecutive naturals, for example, 3671 + ... + 6111.

It is an arithmetic number, because the mean of its divisors is an integer number (1536018).

Almost surely, 2^11938931 is an apocalyptic number.

11938931 is a deficient number, since it is larger than the sum of its proper divisors (349213).

11938931 is an equidigital number, since it uses as much as digits as its factorization.

11938931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2581.

The product of its digits is 5832, while the sum is 35.

The square root of 11938931 is about 3455.2758211176. The cubic root of 11938931 is about 228.5538180815.

The spelling of 11938931 in words is "eleven million, nine hundred thirty-eight thousand, nine hundred thirty-one".