801844 has 6 divisors (see below), whose sum is σ = 1403234. Its totient is φ = 400920.

The previous prime is 801841. The next prime is 801859. The reversal of 801844 is 448108.

It can be written as a sum of positive squares in only one way, i.e., 756900 + 44944 = 870^2 + 212^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (801841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100227 + ... + 100234.

2⁸⁰¹⁸⁴⁴ is an apocalyptic number.

It is an amenable number.

801844 is a deficient number, since it is larger than the sum of its proper divisors (601390).

801844 is a wasteful number, since it uses less digits than its factorization.

801844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200465 (or 200463 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 25.

The square root of 801844 is about 895.4574250069. The cubic root of 801844 is about 92.9030476888.

The spelling of 801844 in words is "eight hundred one thousand, eight hundred forty-four".