723808 has 12 divisors (see below), whose sum is σ = 1425060. Its totient is φ = 361888.

The previous prime is 723803. The next prime is 723823. The reversal of 723808 is 808327.

It is a happy number.

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 as a sum of consecutive naturals, namely, 11278 + ... + 11341.

It is an arithmetic number, because the mean of its divisors is an integer number (118755).

2⁷²³⁸⁰⁸ is an apocalyptic number.

It is an amenable number.

723808 is a deficient number, since it is larger than the sum of its proper divisors (701252).

723808 is a wasteful number, since it uses less digits than its factorization.

723808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22629 (or 22621 counting only the distinct ones).

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

The square root of 723808 is about 850.7690638475. The cubic root of 723808 is about 89.7858281910.

The spelling of 723808 in words is "seven hundred twenty-three thousand, eight hundred eight".