11822879 has 4 divisors (see below), whose sum is σ = 11895576. Its totient is φ = 11750184.

The previous prime is 11822857. The next prime is 11822911. The reversal of 11822879 is 97822811.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11822879 - 2⁸ = 11822623 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11822809) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36104 + ... + 36429.

It is an arithmetic number, because the mean of its divisors is an integer number (2973894).

Almost surely, 2^11822879 is an apocalyptic number.

11822879 is a deficient number, since it is larger than the sum of its proper divisors (72697).

11822879 is an equidigital number, since it uses as much as digits as its factorization.

11822879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72696.

The product of its digits is 16128, while the sum is 38.

The square root of 11822879 is about 3438.4413620127. The cubic root of 11822879 is about 227.8108554955.

The spelling of 11822879 in words is "eleven million, eight hundred twenty-two thousand, eight hundred seventy-nine".