723384 has 64 divisors (see below), whose sum is σ = 2138400. Its totient is φ = 225792.

The previous prime is 723379. The next prime is 723391. The reversal of 723384 is 483327.

It is a super-2 number, since 2×723384² = 1046568822912, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3574 + ... + 3770.

2⁷²³³⁸⁴ 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 723384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1069200).

723384 is an abundant number, since it is smaller than the sum of its proper divisors (1415016).

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

723384 is a wasteful number, since it uses less digits than its factorization.

723384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229 (or 219 counting only the distinct ones).

The product of its digits is 4032, while the sum is 27.

The square root of 723384 is about 850.5198410384. The cubic root of 723384 is about 89.7682928653.

The spelling of 723384 in words is "seven hundred twenty-three thousand, three hundred eighty-four".