11920979 has 8 divisors (see below), whose sum is σ = 13684320. Its totient is φ = 10172736.

The previous prime is 11920963. The next prime is 11920981. The reversal of 11920979 is 97902911.

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

It is not a de Polignac number, because 11920979 - 2⁴ = 11920963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11920949) 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, 2024 + ... + 5285.

It is an arithmetic number, because the mean of its divisors is an integer number (1710540).

Almost surely, 2^11920979 is an apocalyptic number.

11920979 is a deficient number, since it is larger than the sum of its proper divisors (1763341).

11920979 is an equidigital number, since it uses as much as digits as its factorization.

11920979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7549.

The product of its (nonzero) digits is 10206, while the sum is 38.

The square root of 11920979 is about 3452.6770772837. The cubic root of 11920979 is about 228.4392054651.

The spelling of 11920979 in words is "eleven million, nine hundred twenty thousand, nine hundred seventy-nine".