12479257 has 16 divisors (see below), whose sum is σ = 15177600. Its totient is φ = 10022400.

The previous prime is 12479237. The next prime is 12479261. The reversal of 12479257 is 75297421.

12479257 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 12479257 - 2²³ = 4090649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12479227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12969 + ... + 13897.

It is an arithmetic number, because the mean of its divisors is an integer number (948600).

Almost surely, 2^12479257 is an apocalyptic number.

It is an amenable number.

12479257 is a deficient number, since it is larger than the sum of its proper divisors (2698343).

12479257 is a wasteful number, since it uses less digits than its factorization.

12479257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1056.

The product of its digits is 35280, while the sum is 37.

The square root of 12479257 is about 3532.5991847364. The cubic root of 12479257 is about 231.9509966359.

The spelling of 12479257 in words is "twelve million, four hundred seventy-nine thousand, two hundred fifty-seven".