857545 has 16 divisors (see below), whose sum is σ = 1128960. Its totient is φ = 621504.

The previous prime is 857539. The next prime is 857551. The reversal of 857545 is 545758.

857545 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (857539) and next prime (857551).

It is not a de Polignac number, because 857545 - 2⁵ = 857513 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 857545.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5052 + ... + 5218.

It is an arithmetic number, because the mean of its divisors is an integer number (70560).

2⁸⁵⁷⁵⁴⁵ is an apocalyptic number.

It is an amenable number.

857545 is a deficient number, since it is larger than the sum of its proper divisors (271415).

857545 is a wasteful number, since it uses less digits than its factorization.

857545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264.

The product of its digits is 28000, while the sum is 34.

The square root of 857545 is about 926.0372562700. The cubic root of 857545 is about 95.0062784401.

The spelling of 857545 in words is "eight hundred fifty-seven thousand, five hundred forty-five".