857404 has 6 divisors (see below), whose sum is σ = 1500464. Its totient is φ = 428700.

The previous prime is 857369. The next prime is 857407. The reversal of 857404 is 404758.

857404 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a d-powerful number, because it can be written as 8⁵ + 5 + 4³ + 7⁷ + 0 + 4⁵ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (857407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107172 + ... + 107179.

2⁸⁵⁷⁴⁰⁴ is an apocalyptic number.

It is an amenable number.

857404 is a deficient number, since it is larger than the sum of its proper divisors (643060).

857404 is a wasteful number, since it uses less digits than its factorization.

857404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214355 (or 214353 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 28.

The square root of 857404 is about 925.9611222940. The cubic root of 857404 is about 95.0010710867.

The spelling of 857404 in words is "eight hundred fifty-seven thousand, four hundred four".