857494 has 8 divisors (see below), whose sum is σ = 1403208. Its totient is φ = 389760.

The previous prime is 857471. The next prime is 857513. The reversal of 857494 is 494758.

857494 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, 19467 + ... + 19510.

It is an arithmetic number, because the mean of its divisors is an integer number (175401).

2⁸⁵⁷⁴⁹⁴ is an apocalyptic number.

857494 is a deficient number, since it is larger than the sum of its proper divisors (545714).

857494 is a wasteful number, since it uses less digits than its factorization.

857494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38990.

The product of its digits is 40320, while the sum is 37.

The square root of 857494 is about 926.0097191715. The cubic root of 857494 is about 95.0043949952.

It can be divided in two parts, 8574 and 94, that added together give a palindrome (8668).

The spelling of 857494 in words is "eight hundred fifty-seven thousand, four hundred ninety-four".