712728730 has 32 divisors (see below), whose sum is σ = 1468544256. Its totient is φ = 243970944.

The previous prime is 712728721. The next prime is 712728749. The reversal of 712728730 is 37827217.

712728730 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 712728730.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37422 + ... + 53158.

It is an arithmetic number, because the mean of its divisors is an integer number (45892008).

Almost surely, 2^712728730 is an apocalyptic number.

712728730 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

712728730 is an abundant number, since it is smaller than the sum of its proper divisors (755815526).

712728730 is a wasteful number, since it uses less digits than its factorization.

712728730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16398.

The product of its (nonzero) digits is 32928, while the sum is 37.

The square root of 712728730 is about 26696.9797917293. The cubic root of 712728730 is about 893.2535588463.

The spelling of 712728730 in words is "seven hundred twelve million, seven hundred twenty-eight thousand, seven hundred thirty".