857696 has 36 divisors (see below), whose sum is σ = 1967868. Its totient is φ = 366912.

The previous prime is 857687. The next prime is 857707. The reversal of 857696 is 696758.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1295 + ... + 1841.

It is an arithmetic number, because the mean of its divisors is an integer number (54663).

2⁸⁵⁷⁶⁹⁶ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 857696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (983934).

857696 is an abundant number, since it is smaller than the sum of its proper divisors (1110172).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

857696 is a wasteful number, since it uses less digits than its factorization.

857696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 571 (or 556 counting only the distinct ones).

The product of its digits is 90720, while the sum is 41.

The square root of 857696 is about 926.1187828783. The cubic root of 857696 is about 95.0118544764.

The spelling of 857696 in words is "eight hundred fifty-seven thousand, six hundred ninety-six".