12879799 has 4 divisors (see below), whose sum is σ = 13323960. Its totient is φ = 12435640.

The previous prime is 12879773. The next prime is 12879827. The reversal of 12879799 is 99797821.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12879799 - 2¹⁵ = 12847031 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12879749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 222037 + ... + 222094.

It is an arithmetic number, because the mean of its divisors is an integer number (3330990).

Almost surely, 2^12879799 is an apocalyptic number.

12879799 is a deficient number, since it is larger than the sum of its proper divisors (444161).

12879799 is an equidigital number, since it uses as much as digits as its factorization.

12879799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444160.

The product of its digits is 571536, while the sum is 52.

The square root of 12879799 is about 3588.8436856458. The cubic root of 12879799 is about 234.4065242101.

The spelling of 12879799 in words is "twelve million, eight hundred seventy-nine thousand, seven hundred ninety-nine".