723804 has 12 divisors (see below), whose sum is σ = 1688904. Its totient is φ = 241264.

The previous prime is 723803. The next prime is 723823. The reversal of 723804 is 408327.

723804 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (723803) 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, 30147 + ... + 30170.

It is an arithmetic number, because the mean of its divisors is an integer number (140742).

2⁷²³⁸⁰⁴ is an apocalyptic number.

It is an amenable number.

723804 is an abundant number, since it is smaller than the sum of its proper divisors (965100).

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

723804 is a wasteful number, since it uses less digits than its factorization.

723804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60324 (or 60322 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 723804 is about 850.7667130301. The cubic root of 723804 is about 89.7856627954.

The spelling of 723804 in words is "seven hundred twenty-three thousand, eight hundred four".