723944 has 16 divisors (see below), whose sum is σ = 1462020. Its totient is φ = 334080.

The previous prime is 723923. The next prime is 723949. The reversal of 723944 is 449327.

723944 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 2 ways, for example, as 722500 + 1444 = 850^2 + 38^2 .

It is not an unprimeable number, because it can be changed into a prime (723949) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3377 + ... + 3584.

2⁷²³⁹⁴⁴ is an apocalyptic number.

It is an amenable number.

723944 is an abundant number, since it is smaller than the sum of its proper divisors (738076).

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

723944 is a wasteful number, since it uses less digits than its factorization.

723944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6980 (or 6976 counting only the distinct ones).

The product of its digits is 6048, while the sum is 29.

The square root of 723944 is about 850.8489877763. The cubic root of 723944 is about 89.7914512789.

The spelling of 723944 in words is "seven hundred twenty-three thousand, nine hundred forty-four".