727345720 has 64 divisors (see below), whose sum is σ = 1667877120. Its totient is φ = 285410304.

The previous prime is 727345681. The next prime is 727345747. The reversal of 727345720 is 27543727.

727345720 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 727345720.

It is a congruent number.

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, 650602 + ... + 651718.

It is an arithmetic number, because the mean of its divisors is an integer number (26060580).

Almost surely, 2^727345720 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 727345720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (833938560).

727345720 is an abundant number, since it is smaller than the sum of its proper divisors (940531400).

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

727345720 is a wasteful number, since it uses less digits than its factorization.

727345720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1424 (or 1420 counting only the distinct ones).

The product of its (nonzero) digits is 82320, while the sum is 37.

The square root of 727345720 is about 26969.3477859588. The cubic root of 727345720 is about 899.3187107397.

The spelling of 727345720 in words is "seven hundred twenty-seven million, three hundred forty-five thousand, seven hundred twenty".