11879917 has 8 divisors (see below), whose sum is σ = 13709696. Its totient is φ = 10083312.

The previous prime is 11879909. The next prime is 11879939. The reversal of 11879917 is 71997811.

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

It is a cyclic number.

It is not a de Polignac number, because 11879917 - 2³ = 11879909 is a prime.

It is a super-2 number, since 2×11879917² = 282264855853778, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11879977) 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, 7518 + ... + 8959.

It is an arithmetic number, because the mean of its divisors is an integer number (1713712).

Almost surely, 2^11879917 is an apocalyptic number.

It is an amenable number.

11879917 is a deficient number, since it is larger than the sum of its proper divisors (1829779).

11879917 is a wasteful number, since it uses less digits than its factorization.

11879917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16587.

The product of its digits is 31752, while the sum is 43.

The square root of 11879917 is about 3446.7255475306. The cubic root of 11879917 is about 228.1766162555.

The spelling of 11879917 in words is "eleven million, eight hundred seventy-nine thousand, nine hundred seventeen".