12863257 has 16 divisors (see below), whose sum is σ = 14470848. Its totient is φ = 11335680.

The previous prime is 12863251. The next prime is 12863261. The reversal of 12863257 is 75236821.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 12863257 - 2²³ = 4474649 is a prime.

It is a Duffinian number.

Its product of digits (20160) is a multiple of the sum of its prime divisors (360).

It is not an unprimeable number, because it can be changed into a prime (12863251) 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, 66553 + ... + 66745.

It is an arithmetic number, because the mean of its divisors is an integer number (904428).

Almost surely, 2^12863257 is an apocalyptic number.

It is an amenable number.

12863257 is a deficient number, since it is larger than the sum of its proper divisors (1607591).

12863257 is a wasteful number, since it uses less digits than its factorization.

12863257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360.

The product of its digits is 20160, while the sum is 34.

The square root of 12863257 is about 3586.5383031553. The cubic root of 12863257 is about 234.3061289079.

The spelling of 12863257 in words is "twelve million, eight hundred sixty-three thousand, two hundred fifty-seven".