851814 has 24 divisors (see below), whose sum is σ = 1896960. Its totient is φ = 276048.

The previous prime is 851813. The next prime is 851821. The reversal of 851814 is 418158.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (851813) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27 + ... + 1305.

It is an arithmetic number, because the mean of its divisors is an integer number (79040).

2⁸⁵¹⁸¹⁴ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 851814, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (948480).

851814 is an abundant number, since it is smaller than the sum of its proper divisors (1045146).

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

851814 is a wasteful number, since it uses less digits than its factorization.

851814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1324 (or 1321 counting only the distinct ones).

The product of its digits is 1280, while the sum is 27.

The square root of 851814 is about 922.9377010395. The cubic root of 851814 is about 94.7941619008.

The spelling of 851814 in words is "eight hundred fifty-one thousand, eight hundred fourteen".