723416728 has 32 divisors (see below), whose sum is σ = 1388482560. Its totient is φ = 353251360.

The previous prime is 723416717. The next prime is 723416731. The reversal of 723416728 is 827614327.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54825 + ... + 66727.

It is an arithmetic number, because the mean of its divisors is an integer number (43390080).

Almost surely, 2^723416728 is an apocalyptic number.

It is an amenable number.

723416728 is a deficient number, since it is larger than the sum of its proper divisors (665065832).

723416728 is a wasteful number, since it uses less digits than its factorization.

723416728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12087 (or 12083 counting only the distinct ones).

The product of its digits is 112896, while the sum is 40.

The square root of 723416728 is about 26896.4073437327. The cubic root of 723416728 is about 897.6964663794.

The spelling of 723416728 in words is "seven hundred twenty-three million, four hundred sixteen thousand, seven hundred twenty-eight".