857412 has 48 divisors (see below), whose sum is σ = 2358720. Its totient is φ = 268416.

The previous prime is 857411. The next prime is 857419. The reversal of 857412 is 214758.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (857411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1603 + ... + 2069.

It is an arithmetic number, because the mean of its divisors is an integer number (49140).

2⁸⁵⁷⁴¹² is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 857412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1179360).

857412 is an abundant number, since it is smaller than the sum of its proper divisors (1501308).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

857412 is a wasteful number, since it uses less digits than its factorization.

857412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 497 (or 489 counting only the distinct ones).

The product of its digits is 2240, while the sum is 27.

The square root of 857412 is about 925.9654421197. The cubic root of 857412 is about 95.0013665547.

The spelling of 857412 in words is "eight hundred fifty-seven thousand, four hundred twelve".