723880 has 16 divisors (see below), whose sum is σ = 1628820. Its totient is φ = 289536.

The previous prime is 723859. The next prime is 723893. The reversal of 723880 is 88327.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 669124 + 54756 = 818^2 + 234^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9009 + ... + 9088.

2⁷²³⁸⁸⁰ is an apocalyptic number.

It is an amenable number.

723880 is an abundant number, since it is smaller than the sum of its proper divisors (904940).

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

723880 is a wasteful number, since it uses less digits than its factorization.

723880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18108 (or 18104 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 723880 is about 850.8113774510. The cubic root of 723880 is about 89.7888052076.

The spelling of 723880 in words is "seven hundred twenty-three thousand, eight hundred eighty".