11979894 has 8 divisors (see below), whose sum is σ = 23959800. Its totient is φ = 3993296.

The previous prime is 11979893. The next prime is 11979907. The reversal of 11979894 is 49897911.

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

11979894 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11979893) 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, 998319 + ... + 998330.

It is an arithmetic number, because the mean of its divisors is an integer number (2994975).

Almost surely, 2^11979894 is an apocalyptic number.

11979894 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11979894 is a wasteful number, since it uses less digits than its factorization.

11979894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1996654.

The product of its digits is 163296, while the sum is 48.

The square root of 11979894 is about 3461.1983473936. The cubic root of 11979894 is about 228.8149124509.

The spelling of 11979894 in words is "eleven million, nine hundred seventy-nine thousand, eight hundred ninety-four".