11876991 has 8 divisors (see below), whose sum is σ = 18098304. Its totient is φ = 6786840.

The previous prime is 11876989. The next prime is 11877007. The reversal of 11876991 is 19967811.

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

It is not a de Polignac number, because 11876991 - 2¹ = 11876989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11876981) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 282765 + ... + 282806.

It is an arithmetic number, because the mean of its divisors is an integer number (2262288).

Almost surely, 2^11876991 is an apocalyptic number.

11876991 is a deficient number, since it is larger than the sum of its proper divisors (6221313).

11876991 is an equidigital number, since it uses as much as digits as its factorization.

11876991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 565581.

The product of its digits is 27216, while the sum is 42.

The square root of 11876991 is about 3446.3010605575. The cubic root of 11876991 is about 228.1578815679.

The spelling of 11876991 in words is "eleven million, eight hundred seventy-six thousand, nine hundred ninety-one".