6913857 has 16 divisors (see below), whose sum is σ = 9545600. Its totient is φ = 4447872.

The previous prime is 6913847. The next prime is 6913859. The reversal of 6913857 is 7583196.

It is not a de Polignac number, because 6913857 - 2⁶ = 6913793 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

6913857 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (6913859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21933 + ... + 22245.

It is an arithmetic number, because the mean of its divisors is an integer number (596600).

Almost surely, 2^6913857 is an apocalyptic number.

It is an amenable number.

6913857 is a deficient number, since it is larger than the sum of its proper divisors (2631743).

6913857 is a wasteful number, since it uses less digits than its factorization.

6913857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 552.

The product of its digits is 45360, while the sum is 39.

The square root of 6913857 is about 2629.4214192480. The cubic root of 6913857 is about 190.5051837582.

The spelling of 6913857 in words is "six million, nine hundred thirteen thousand, eight hundred fifty-seven".