723580 has 72 divisors (see below), whose sum is σ = 1876896. Its totient is φ = 232320.

The previous prime is 723563. The next prime is 723587. The reversal of 723580 is 85327.

723580 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (723587) by changing a digit.

723580 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31449 + ... + 31471.

It is an arithmetic number, because the mean of its divisors is an integer number (26068).

2⁷²³⁵⁸⁰ 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 723580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (938448).

723580 is an abundant number, since it is smaller than the sum of its proper divisors (1153316).

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

723580 is a wasteful number, since it uses less digits than its factorization.

723580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67 (or 54 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 723580 is about 850.6350568840. The cubic root of 723580 is about 89.7763996691.

The spelling of 723580 in words is "seven hundred twenty-three thousand, five hundred eighty".