12392879 has 2 divisors, whose sum is σ = 12392880. Its totient is φ = 12392878.

The previous prime is 12392851. The next prime is 12392899. The reversal of 12392879 is 97829321.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12392879 is a prime.

It is a super-3 number, since 3×12392879³ (a number of 22 digits) contains 333 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12392899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6196439 + 6196440.

It is an arithmetic number, because the mean of its divisors is an integer number (6196440).

Almost surely, 2^12392879 is an apocalyptic number.

12392879 is a deficient number, since it is larger than the sum of its proper divisors (1).

12392879 is an equidigital number, since it uses as much as digits as its factorization.

12392879 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 54432, while the sum is 41.

The square root of 12392879 is about 3520.3521130705. The cubic root of 12392879 is about 231.4145900097.

The spelling of 12392879 in words is "twelve million, three hundred ninety-two thousand, eight hundred seventy-nine".