723080 has 16 divisors (see below), whose sum is σ = 1627020. Its totient is φ = 289216.

The previous prime is 723071. The next prime is 723089. The reversal of 723080 is 80327.

It is an interprime number because it is at equal distance from previous prime (723071) and next prime (723089).

It can be written as a sum of positive squares in 2 ways, for example, as 682276 + 40804 = 826^2 + 202^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (723089) by changing a digit.

723080 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 3 ways as a sum of consecutive naturals, for example, 8999 + ... + 9078.

2⁷²³⁰⁸⁰ is an apocalyptic number.

It is an amenable number.

723080 is an abundant number, since it is smaller than the sum of its proper divisors (903940).

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

723080 is a wasteful number, since it uses less digits than its factorization.

723080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18088 (or 18084 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 723080 is about 850.3411080267. The cubic root of 723080 is about 89.7557161496.

The spelling of 723080 in words is "seven hundred twenty-three thousand, eighty".