851344 has 20 divisors (see below), whose sum is σ = 1776796. Its totient is φ = 392832.

The previous prime is 851327. The next prime is 851351. The reversal of 851344 is 443158.

It can be written as a sum of positive squares in 2 ways, for example, as 230400 + 620944 = 480^2 + 788^2 .

It is an unprimeable number.

851344 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1839 + ... + 2254.

2⁸⁵¹³⁴⁴ is an apocalyptic number.

It is an amenable number.

851344 is an abundant number, since it is smaller than the sum of its proper divisors (925452).

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

851344 is a wasteful number, since it uses less digits than its factorization.

851344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4114 (or 4108 counting only the distinct ones).

The product of its digits is 1920, while the sum is 25.

The square root of 851344 is about 922.6830441706. The cubic root of 851344 is about 94.7767240357.

The spelling of 851344 in words is "eight hundred fifty-one thousand, three hundred forty-four".