857002 has 8 divisors (see below), whose sum is σ = 1295712. Its totient is φ = 425100.

The previous prime is 856993. The next prime is 857009. The reversal of 857002 is 200758.

857002 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an Ulam number.

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, 1374 + ... + 1897.

It is an arithmetic number, because the mean of its divisors is an integer number (161964).

2⁸⁵⁷⁰⁰² is an apocalyptic number.

857002 is a deficient number, since it is larger than the sum of its proper divisors (438710).

857002 is a wasteful number, since it uses less digits than its factorization.

857002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3404.

The product of its (nonzero) digits is 560, while the sum is 22.

The square root of 857002 is about 925.7440250955. The cubic root of 857002 is about 94.9862214551.

The spelling of 857002 in words is "eight hundred fifty-seven thousand, two".