12886257 has 8 divisors (see below), whose sum is σ = 17198784. Its totient is φ = 8582288.

The previous prime is 12886253. The next prime is 12886267. The reversal of 12886257 is 75268821.

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

It is a cyclic number.

It is not a de Polignac number, because 12886257 - 2² = 12886253 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12886253) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3508 + ... + 6170.

It is an arithmetic number, because the mean of its divisors is an integer number (2149848).

Almost surely, 2^12886257 is an apocalyptic number.

It is an amenable number.

12886257 is a deficient number, since it is larger than the sum of its proper divisors (4312527).

12886257 is a wasteful number, since it uses less digits than its factorization.

12886257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4279.

The product of its digits is 53760, while the sum is 39.

The square root of 12886257 is about 3589.7433055861. The cubic root of 12886257 is about 234.4456952250.

The spelling of 12886257 in words is "twelve million, eight hundred eighty-six thousand, two hundred fifty-seven".