11879391 has 16 divisors (see below), whose sum is σ = 16303104. Its totient is φ = 7690464.

The previous prime is 11879383. The next prime is 11879393. The reversal of 11879391 is 19397811.

It is not a de Polignac number, because 11879391 - 2³ = 11879383 is a prime.

It is a super-2 number, since 2×11879391² = 282239861061762, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11879393) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24150 + ... + 24636.

It is an arithmetic number, because the mean of its divisors is an integer number (1018944).

Almost surely, 2^11879391 is an apocalyptic number.

11879391 is a deficient number, since it is larger than the sum of its proper divisors (4423713).

11879391 is a wasteful number, since it uses less digits than its factorization.

11879391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 710.

The product of its digits is 13608, while the sum is 39.

The square root of 11879391 is about 3446.6492423802. The cubic root of 11879391 is about 228.1732485924.

The spelling of 11879391 in words is "eleven million, eight hundred seventy-nine thousand, three hundred ninety-one".