12860257 has 8 divisors (see below), whose sum is σ = 13325312. Its totient is φ = 12398400.

The previous prime is 12860227. The next prime is 12860261. The reversal of 12860257 is 75206821.

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 12860257 - 2⁷ = 12860129 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12860227) 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, 9832 + ... + 11062.

It is an arithmetic number, because the mean of its divisors is an integer number (1665664).

Almost surely, 2^12860257 is an apocalyptic number.

It is an amenable number.

12860257 is a deficient number, since it is larger than the sum of its proper divisors (465055).

12860257 is a wasteful number, since it uses less digits than its factorization.

12860257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1599.

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 12860257 is about 3586.1200481858. The cubic root of 12860257 is about 234.2879123438.

The spelling of 12860257 in words is "twelve million, eight hundred sixty thousand, two hundred fifty-seven".