11791983 has 16 divisors (see below), whose sum is σ = 18074880. Its totient is φ = 6698496.

The previous prime is 11791973. The next prime is 11791987. The reversal of 11791983 is 38919711.

It is not a de Polignac number, because 11791983 - 2¹⁰ = 11790959 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11791987) 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 15 ways as a sum of consecutive naturals, for example, 2191 + ... + 5327.

It is an arithmetic number, because the mean of its divisors is an integer number (1129680).

Almost surely, 2^11791983 is an apocalyptic number.

11791983 is a deficient number, since it is larger than the sum of its proper divisors (6282897).

11791983 is a wasteful number, since it uses less digits than its factorization.

11791983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3326.

The product of its digits is 13608, while the sum is 39.

The square root of 11791983 is about 3433.9456897278. The cubic root of 11791983 is about 227.6122410364.

The spelling of 11791983 in words is "eleven million, seven hundred ninety-one thousand, nine hundred eighty-three".