8256957 has 16 divisors (see below), whose sum is σ = 11472960. Its totient is φ = 5277312.

The previous prime is 8256929. The next prime is 8256961. The reversal of 8256957 is 7596528.

It is not a de Polignac number, because 8256957 - 2¹⁵ = 8224189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8256907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7594 + ... + 8612.

It is an arithmetic number, because the mean of its divisors is an integer number (717060).

Almost surely, 2^8256957 is an apocalyptic number.

It is an amenable number.

8256957 is a deficient number, since it is larger than the sum of its proper divisors (3216003).

8256957 is a wasteful number, since it uses less digits than its factorization.

8256957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1132.

The product of its digits is 151200, while the sum is 42.

The square root of 8256957 is about 2873.4921263160. The cubic root of 8256957 is about 202.1187828648.

The spelling of 8256957 in words is "eight million, two hundred fifty-six thousand, nine hundred fifty-seven".