11879421 has 4 divisors (see below), whose sum is σ = 15839232. Its totient is φ = 7919612.

The previous prime is 11879411. The next prime is 11879437. The reversal of 11879421 is 12497811.

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 a cyclic number.

It is not a de Polignac number, because 11879421 - 2¹³ = 11871229 is a prime.

It is a super-2 number, since 2×11879421² = 282241286590482, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11879411) 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, 1979901 + ... + 1979906.

It is an arithmetic number, because the mean of its divisors is an integer number (3959808).

Almost surely, 2^11879421 is an apocalyptic number.

It is an amenable number.

11879421 is a deficient number, since it is larger than the sum of its proper divisors (3959811).

11879421 is an equidigital number, since it uses as much as digits as its factorization.

11879421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3959810.

The product of its digits is 4032, while the sum is 33.

The square root of 11879421 is about 3446.6535944304. The cubic root of 11879421 is about 228.1734406672.

The spelling of 11879421 in words is "eleven million, eight hundred seventy-nine thousand, four hundred twenty-one".