857008 has 20 divisors (see below), whose sum is σ = 1718640. Its totient is φ = 413504.

The previous prime is 856993. The next prime is 857009. The reversal of 857008 is 800758.

It is a plaindrome in base 15.

It is a zygodrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (857009) 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, 460 + ... + 1387.

It is an arithmetic number, because the mean of its divisors is an integer number (85932).

2⁸⁵⁷⁰⁰⁸ is an apocalyptic number.

It is an amenable number.

857008 is an abundant number, since it is smaller than the sum of its proper divisors (861632).

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

857008 is a wasteful number, since it uses less digits than its factorization.

857008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1884 (or 1878 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 28.

The square root of 857008 is about 925.7472657265. The cubic root of 857008 is about 94.9864431255.

The spelling of 857008 in words is "eight hundred fifty-seven thousand, eight".