857854 has 16 divisors (see below), whose sum is σ = 1423008. Its totient is φ = 385792.

The previous prime is 857851. The next prime is 857867. The reversal of 857854 is 458758.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (857851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 234 + ... + 1330.

It is an arithmetic number, because the mean of its divisors is an integer number (88938).

2⁸⁵⁷⁸⁵⁴ is an apocalyptic number.

857854 is a deficient number, since it is larger than the sum of its proper divisors (565154).

857854 is a wasteful number, since it uses less digits than its factorization.

857854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1139.

The product of its digits is 44800, while the sum is 37.

The square root of 857854 is about 926.2040811830. The cubic root of 857854 is about 95.0176883038.

It can be divided in two parts, 857 and 854, that added together give a triangular number (1711 = T₅₈).

The spelling of 857854 in words is "eight hundred fifty-seven thousand, eight hundred fifty-four".