857608 has 8 divisors (see below), whose sum is σ = 1608030. Its totient is φ = 428800.

The previous prime is 857581. The next prime is 857629. The reversal of 857608 is 806758.

It can be written as a sum of positive squares in only one way, i.e., 842724 + 14884 = 918^2 + 122^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53593 + ... + 53608.

2⁸⁵⁷⁶⁰⁸ is an apocalyptic number.

It is an amenable number.

857608 is a deficient number, since it is larger than the sum of its proper divisors (750422).

857608 is a wasteful number, since it uses less digits than its factorization.

857608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107207 (or 107203 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 34.

The square root of 857608 is about 926.0712715553. The cubic root of 857608 is about 95.0086049454.

The spelling of 857608 in words is "eight hundred fifty-seven thousand, six hundred eight".