854857957 has 4 divisors (see below), whose sum is σ = 855195616. Its totient is φ = 854520300.

The previous prime is 854857909. The next prime is 854857967. The reversal of 854857957 is 759758458.

854857957 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-854857957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (854857967) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 165003 + ... + 170104.

It is an arithmetic number, because the mean of its divisors is an integer number (213798904).

Almost surely, 2^854857957 is an apocalyptic number.

It is an amenable number.

854857957 is a deficient number, since it is larger than the sum of its proper divisors (337659).

854857957 is a wasteful number, since it uses less digits than its factorization.

854857957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337658.

The product of its digits is 14112000, while the sum is 58.

The square root of 854857957 is about 29237.9540494885. The cubic root of 854857957 is about 949.0694329951.

The spelling of 854857957 in words is "eight hundred fifty-four million, eight hundred fifty-seven thousand, nine hundred fifty-seven".