712725728 has 72 divisors (see below), whose sum is σ = 1657685736. Its totient is φ = 299020800.

The previous prime is 712725703. The next prime is 712725733. The reversal of 712725728 is 827527217.

712725728 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 an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 53498 + ... + 65478.

It is an arithmetic number, because the mean of its divisors is an integer number (23023413).

Almost surely, 2^712725728 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 712725728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (828842868).

712725728 is an abundant number, since it is smaller than the sum of its proper divisors (944960008).

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

712725728 is a wasteful number, since it uses less digits than its factorization.

712725728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12028 (or 12007 counting only the distinct ones).

The product of its digits is 109760, while the sum is 41.

The square root of 712725728 is about 26696.9235680818. The cubic root of 712725728 is about 893.2523047221.

The spelling of 712725728 in words is "seven hundred twelve million, seven hundred twenty-five thousand, seven hundred twenty-eight".