12979511 has 2 divisors, whose sum is σ = 12979512. Its totient is φ = 12979510.

The previous prime is 12979453. The next prime is 12979529. The reversal of 12979511 is 11597921.

12979511 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12979511 - 2¹⁰ = 12978487 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12979531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6489755 + 6489756.

It is an arithmetic number, because the mean of its divisors is an integer number (6489756).

Almost surely, 2^12979511 is an apocalyptic number.

12979511 is a deficient number, since it is larger than the sum of its proper divisors (1).

12979511 is an equidigital number, since it uses as much as digits as its factorization.

12979511 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5670, while the sum is 35.

The square root of 12979511 is about 3602.7088419688. The cubic root of 12979511 is about 235.0098743399.

The spelling of 12979511 in words is "twelve million, nine hundred seventy-nine thousand, five hundred eleven".