11881937 has 4 divisors (see below), whose sum is σ = 11892336. Its totient is φ = 11871540.

The previous prime is 11881931. The next prime is 11881957. The reversal of 11881937 is 73918811.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 11881937 - 2¹² = 11877841 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11881937.

It is not an unprimeable number, because it can be changed into a prime (11881931) 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, 3239 + ... + 5852.

It is an arithmetic number, because the mean of its divisors is an integer number (2973084).

Almost surely, 2^11881937 is an apocalyptic number.

It is an amenable number.

11881937 is a deficient number, since it is larger than the sum of its proper divisors (10399).

11881937 is an equidigital number, since it uses as much as digits as its factorization.

11881937 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10398.

The product of its digits is 12096, while the sum is 38.

The square root of 11881937 is about 3447.0185668197. The cubic root of 11881937 is about 228.1895481820.

It can be divided in two parts, 1188 and 1937, that added together give a 5-th power (3125 = 5⁵).

The spelling of 11881937 in words is "eleven million, eight hundred eighty-one thousand, nine hundred thirty-seven".