12395979 has 12 divisors (see below), whose sum is σ = 17976816. Its totient is φ = 8230992.

The previous prime is 12395927. The next prime is 12395983. The reversal of 12395979 is 97959321.

It is a happy number.

It is not a de Polignac number, because 12395979 - 2¹⁶ = 12330443 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12395989) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 252 + ... + 4985.

It is an arithmetic number, because the mean of its divisors is an integer number (1498068).

Almost surely, 2^12395979 is an apocalyptic number.

12395979 is a deficient number, since it is larger than the sum of its proper divisors (5580837).

12395979 is a wasteful number, since it uses less digits than its factorization.

12395979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5506 (or 5503 counting only the distinct ones).

The product of its digits is 153090, while the sum is 45.

The square root of 12395979 is about 3520.7923824048. The cubic root of 12395979 is about 231.4338840312.

The spelling of 12395979 in words is "twelve million, three hundred ninety-five thousand, nine hundred seventy-nine".