812344 has 32 divisors (see below), whose sum is σ = 1678320. Its totient is φ = 366336.

The previous prime is 812341. The next prime is 812347. The reversal of 812344 is 443218.

812344 = T₃₄₇ + T₃₄₈ + ... + T₃₅₉.

It is an interprime number because it is at equal distance from previous prime (812341) and next prime (812347).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (812341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7539 + ... + 7645.

2⁸¹²³⁴⁴ 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 812344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (839160).

812344 is an abundant number, since it is smaller than the sum of its proper divisors (865976).

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

812344 is a wasteful number, since it uses less digits than its factorization.

812344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199 (or 195 counting only the distinct ones).

The product of its digits is 768, while the sum is 22.

The square root of 812344 is about 901.3012814814. The cubic root of 812344 is about 93.3068065203.

It can be divided in two parts, 812 and 344, that added together give a square (1156 = 34²).

The spelling of 812344 in words is "eight hundred twelve thousand, three hundred forty-four".