993844 has 6 divisors (see below), whose sum is σ = 1739234. Its totient is φ = 496920.

The previous prime is 993841. The next prime is 993851. The reversal of 993844 is 448399.

993844 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 702244 + 291600 = 838^2 + 540^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (993841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124227 + ... + 124234.

2⁹⁹³⁸⁴⁴ is an apocalyptic number.

It is an amenable number.

993844 is a deficient number, since it is larger than the sum of its proper divisors (745390).

993844 is a wasteful number, since it uses less digits than its factorization.

993844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248465 (or 248463 counting only the distinct ones).

The product of its digits is 31104, while the sum is 37.

The square root of 993844 is about 996.9172483210. The cubic root of 993844 is about 99.7943774836.

The spelling of 993844 in words is "nine hundred ninety-three thousand, eight hundred forty-four".