11813877 has 16 divisors (see below), whose sum is σ = 18424000. Its totient is φ = 7461072.

The previous prime is 11813849. The next prime is 11813887. The reversal of 11813877 is 77831811.

It is not a de Polignac number, because 11813877 - 2⁸ = 11813621 is a prime.

It is a super-2 number, since 2×11813877² = 279135379542258, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11813807) 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 15 ways as a sum of consecutive naturals, for example, 11002 + ... + 12027.

It is an arithmetic number, because the mean of its divisors is an integer number (1151500).

Almost surely, 2^11813877 is an apocalyptic number.

It is an amenable number.

11813877 is a deficient number, since it is larger than the sum of its proper divisors (6610123).

11813877 is a wasteful number, since it uses less digits than its factorization.

11813877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23057 (or 23051 counting only the distinct ones).

The product of its digits is 9408, while the sum is 36.

The square root of 11813877 is about 3437.1320894024. The cubic root of 11813877 is about 227.7530220347.

The spelling of 11813877 in words is "eleven million, eight hundred thirteen thousand, eight hundred seventy-seven".