857542 has 8 divisors (see below), whose sum is σ = 1470096. Its totient is φ = 367512.

The previous prime is 857539. The next prime is 857551. The reversal of 857542 is 245758.

857542 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 a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30613 + ... + 30640.

It is an arithmetic number, because the mean of its divisors is an integer number (183762).

2⁸⁵⁷⁵⁴² is an apocalyptic number.

857542 is a deficient number, since it is larger than the sum of its proper divisors (612554).

857542 is a wasteful number, since it uses less digits than its factorization.

857542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61262.

The product of its digits is 11200, while the sum is 31.

The square root of 857542 is about 926.0356364633. The cubic root of 857542 is about 95.0061676513.

The spelling of 857542 in words is "eight hundred fifty-seven thousand, five hundred forty-two".