12979311 has 4 divisors (see below), whose sum is σ = 17305752. Its totient is φ = 8652872.

The previous prime is 12979303. The next prime is 12979333. The reversal of 12979311 is 11397921.

12979311 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 12979311 - 2³ = 12979303 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12979301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2163216 + ... + 2163221.

It is an arithmetic number, because the mean of its divisors is an integer number (4326438).

Almost surely, 2^12979311 is an apocalyptic number.

12979311 is a deficient number, since it is larger than the sum of its proper divisors (4326441).

12979311 is an equidigital number, since it uses as much as digits as its factorization.

12979311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4326440.

The product of its digits is 3402, while the sum is 33.

The square root of 12979311 is about 3602.6810849699. The cubic root of 12979311 is about 235.0086672524.

The spelling of 12979311 in words is "twelve million, nine hundred seventy-nine thousand, three hundred eleven".