12902857 has 8 divisors (see below), whose sum is σ = 14156640. Its totient is φ = 11662560.

The previous prime is 12902849. The next prime is 12902867. The reversal of 12902857 is 75820921.

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 12902857 - 2³ = 12902849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12902807) 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, 1308 + ... + 5245.

It is an arithmetic number, because the mean of its divisors is an integer number (1769580).

Almost surely, 2^12902857 is an apocalyptic number.

It is an amenable number.

12902857 is a deficient number, since it is larger than the sum of its proper divisors (1253783).

12902857 is a wasteful number, since it uses less digits than its factorization.

12902857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6743.

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 12902857 is about 3592.0547044832. The cubic root of 12902857 is about 234.5463225472.

The spelling of 12902857 in words is "twelve million, nine hundred two thousand, eight hundred fifty-seven".