12299879 has 2 divisors, whose sum is σ = 12299880. Its totient is φ = 12299878.

The previous prime is 12299867. The next prime is 12299893. The reversal of 12299879 is 97899221.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12299879 - 2⁴ = 12299863 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12299809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6149939 + 6149940.

It is an arithmetic number, because the mean of its divisors is an integer number (6149940).

Almost surely, 2^12299879 is an apocalyptic number.

12299879 is a deficient number, since it is larger than the sum of its proper divisors (1).

12299879 is an equidigital number, since it uses as much as digits as its factorization.

12299879 is an evil number, because the sum of its binary digits is even.

The product of its digits is 163296, while the sum is 47.

The square root of 12299879 is about 3507.1183327627. The cubic root of 12299879 is about 230.8342670342.

It can be divided in two parts, 122 and 99879, that added together give a palindrome (100001).

The spelling of 12299879 in words is "twelve million, two hundred ninety-nine thousand, eight hundred seventy-nine".