12699079 has 2 divisors, whose sum is σ = 12699080. Its totient is φ = 12699078.

The previous prime is 12699077. The next prime is 12699091. The reversal of 12699079 is 97099621.

12699079 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (97099621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12699079 - 2¹ = 12699077 is a prime.

It is a super-2 number, since 2×12699079² = 322533214896482, which contains 22 as substring.

Together with 12699077, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12699073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6349539 + 6349540.

It is an arithmetic number, because the mean of its divisors is an integer number (6349540).

Almost surely, 2^12699079 is an apocalyptic number.

12699079 is a deficient number, since it is larger than the sum of its proper divisors (1).

12699079 is an equidigital number, since it uses as much as digits as its factorization.

12699079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 61236, while the sum is 43.

The square root of 12699079 is about 3563.5767144822. The cubic root of 12699079 is about 233.3050153843.

The spelling of 12699079 in words is "twelve million, six hundred ninety-nine thousand, seventy-nine".