11877969 has 4 divisors (see below), whose sum is σ = 15837296. Its totient is φ = 7918644.

The previous prime is 11877953. The next prime is 11877997. The reversal of 11877969 is 96977811.

It is a happy number.

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.

It is not a de Polignac number, because 11877969 - 2⁴ = 11877953 is a prime.

It is a super-2 number, since 2×11877969² = 282172295129922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11857969) 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, 1979659 + ... + 1979664.

It is an arithmetic number, because the mean of its divisors is an integer number (3959324).

Almost surely, 2^11877969 is an apocalyptic number.

It is an amenable number.

11877969 is a deficient number, since it is larger than the sum of its proper divisors (3959327).

11877969 is an equidigital number, since it uses as much as digits as its factorization.

11877969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3959326.

The product of its digits is 190512, while the sum is 48.

The square root of 11877969 is about 3446.4429488967. The cubic root of 11877969 is about 228.1641438803.

It can be divided in two parts, 118 and 77969, that added together give a palindrome (78087).

The spelling of 11877969 in words is "eleven million, eight hundred seventy-seven thousand, nine hundred sixty-nine".