12679257 has 8 divisors (see below), whose sum is σ = 16947520. Its totient is φ = 8431920.

The previous prime is 12679253. The next prime is 12679267. The reversal of 12679257 is 75297621.

12679257 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12679257 - 2² = 12679253 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12679253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3757 + ... + 6282.

It is an arithmetic number, because the mean of its divisors is an integer number (2118440).

Almost surely, 2^12679257 is an apocalyptic number.

It is an amenable number.

12679257 is a deficient number, since it is larger than the sum of its proper divisors (4268263).

12679257 is a wasteful number, since it uses less digits than its factorization.

12679257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10463.

The product of its digits is 52920, while the sum is 39.

The square root of 12679257 is about 3560.7944338307. The cubic root of 12679257 is about 233.1835635249.

The spelling of 12679257 in words is "twelve million, six hundred seventy-nine thousand, two hundred fifty-seven".