6957857 has 8 divisors (see below), whose sum is σ = 7560960. Its totient is φ = 6378480.

The previous prime is 6957851. The next prime is 6957859. The reversal of 6957857 is 7587596.

It is a happy number.

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 6957857 - 2¹⁸ = 6695713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6957851) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5318 + ... + 6495.

It is an arithmetic number, because the mean of its divisors is an integer number (945120).

Almost surely, 2^6957857 is an apocalyptic number.

It is an amenable number.

6957857 is a deficient number, since it is larger than the sum of its proper divisors (603103).

6957857 is a wasteful number, since it uses less digits than its factorization.

6957857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11863.

The product of its digits is 529200, while the sum is 47.

The square root of 6957857 is about 2637.7750093592. The cubic root of 6957857 is about 190.9084564467.

The spelling of 6957857 in words is "six million, nine hundred fifty-seven thousand, eight hundred fifty-seven".