12979269 has 18 divisors (see below), whose sum is σ = 19481670. Its totient is φ = 8317008.

The previous prime is 12979237. The next prime is 12979283. The reversal of 12979269 is 96297921.

It can be written as a sum of positive squares in only one way, i.e., 11189025 + 1790244 = 3345^2 + 1338^2 .

It is not a de Polignac number, because 12979269 - 2⁵ = 12979237 is a prime.

It is a super-2 number, since 2×12979269² = 336922847548722, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12979289) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 58092 + ... + 58314.

It is an arithmetic number, because the mean of its divisors is an integer number (1082315).

Almost surely, 2^12979269 is an apocalyptic number.

It is an amenable number.

12979269 is a deficient number, since it is larger than the sum of its proper divisors (6502401).

12979269 is an equidigital number, since it uses as much as digits as its factorization.

12979269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481 (or 255 counting only the distinct ones).

The product of its digits is 122472, while the sum is 45.

The square root of 12979269 is about 3602.6752559730. The cubic root of 12979269 is about 235.0084137624.

The spelling of 12979269 in words is "twelve million, nine hundred seventy-nine thousand, two hundred sixty-nine".