14309979 has 24 divisors (see below), whose sum is σ = 20385792. Its totient is φ = 8925840.

The previous prime is 14309969. The next prime is 14309987. The reversal of 14309979 is 97990341.

14309979 is nontrivially palindromic in base 2.

It is not a de Polignac number, because 14309979 - 2⁷ = 14309851 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 14309979.

It is not an unprimeable number, because it can be changed into a prime (14309909) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 112614 + ... + 112740.

It is an arithmetic number, because the mean of its divisors is an integer number (849408).

Almost surely, 2^14309979 is an apocalyptic number.

14309979 is a deficient number, since it is larger than the sum of its proper divisors (6075813).

14309979 is a wasteful number, since it uses less digits than its factorization.

14309979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247 (or 224 counting only the distinct ones).

The product of its (nonzero) digits is 61236, while the sum is 42.

The square root of 14309979 is about 3782.8532881940. The cubic root of 14309979 is about 242.7800512765.

The spelling of 14309979 in words is "fourteen million, three hundred nine thousand, nine hundred seventy-nine".