11879859 has 4 divisors (see below), whose sum is σ = 15839816. Its totient is φ = 7919904.

The previous prime is 11879843. The next prime is 11879867. The reversal of 11879859 is 95897811.

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

It is not a de Polignac number, because 11879859 - 2⁴ = 11879843 is a prime.

It is a super-2 number, since 2×11879859² = 282262099719762, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11879839) 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, 1979974 + ... + 1979979.

It is an arithmetic number, because the mean of its divisors is an integer number (3959954).

Almost surely, 2^11879859 is an apocalyptic number.

11879859 is a deficient number, since it is larger than the sum of its proper divisors (3959957).

11879859 is an equidigital number, since it uses as much as digits as its factorization.

11879859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3959956.

The product of its digits is 181440, while the sum is 48.

The square root of 11879859 is about 3446.7171337376. The cubic root of 11879859 is about 228.1762449211.

The spelling of 11879859 in words is "eleven million, eight hundred seventy-nine thousand, eight hundred fifty-nine".