11815883 has 4 divisors (see below), whose sum is σ = 12009648. Its totient is φ = 11622120.

The previous prime is 11815879. The next prime is 11815939. The reversal of 11815883 is 38851811.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 38851811 = 1987 ⋅19553.

It is a cyclic number.

It is not a de Polignac number, because 11815883 - 2² = 11815879 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11815183) 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, 96791 + ... + 96912.

It is an arithmetic number, because the mean of its divisors is an integer number (3002412).

Almost surely, 2^11815883 is an apocalyptic number.

11815883 is a deficient number, since it is larger than the sum of its proper divisors (193765).

11815883 is an equidigital number, since it uses as much as digits as its factorization.

11815883 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193764.

The product of its digits is 7680, while the sum is 35.

The square root of 11815883 is about 3437.4238900665. The cubic root of 11815883 is about 227.7659121499.

The spelling of 11815883 in words is "eleven million, eight hundred fifteen thousand, eight hundred eighty-three".