609844 has 6 divisors (see below), whose sum is σ = 1067234. Its totient is φ = 304920.

The previous prime is 609821. The next prime is 609859. The reversal of 609844 is 448906.

It can be written as a sum of positive squares in only one way, i.e., 608400 + 1444 = 780^2 + 38^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76227 + ... + 76234.

2⁶⁰⁹⁸⁴⁴ is an apocalyptic number.

It is an amenable number.

609844 is a deficient number, since it is larger than the sum of its proper divisors (457390).

609844 is a wasteful number, since it uses less digits than its factorization.

609844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152465 (or 152463 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 609844 is about 780.9250924384. The cubic root of 609844 is about 84.8020306266.

The spelling of 609844 in words is "six hundred nine thousand, eight hundred forty-four".