11881983 has 8 divisors (see below), whose sum is σ = 15874096. Its totient is φ = 7905600.

The previous prime is 11881957. The next prime is 11882071. The reversal of 11881983 is 38918811.

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

It is not a de Polignac number, because 11881983 - 2¹³ = 11873791 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11881913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2038 + ... + 5283.

It is an arithmetic number, because the mean of its divisors is an integer number (1984262).

Almost surely, 2^11881983 is an apocalyptic number.

11881983 is a deficient number, since it is larger than the sum of its proper divisors (3992113).

11881983 is an equidigital number, since it uses as much as digits as its factorization.

11881983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7865.

The product of its digits is 13824, while the sum is 39.

The square root of 11881983 is about 3447.0252392462. The cubic root of 11881983 is about 228.1898426544.

The spelling of 11881983 in words is "eleven million, eight hundred eighty-one thousand, nine hundred eighty-three".