726881585 has 8 divisors (see below), whose sum is σ = 878625576. Its totient is φ = 577260160.

The previous prime is 726881567. The next prime is 726881587. The reversal of 726881585 is 585188627.

726881585 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 27331984 + 699549601 = 5228^2 + 26449^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 726881585 - 2¹⁴ = 726865201 is a prime.

It is a super-2 number, since 2×726881585² = 1056713677224224450, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (726881587) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 529886 + ... + 531255.

It is an arithmetic number, because the mean of its divisors is an integer number (109828197).

Almost surely, 2^726881585 is an apocalyptic number.

It is an amenable number.

726881585 is a deficient number, since it is larger than the sum of its proper divisors (151743991).

726881585 is a wasteful number, since it uses less digits than its factorization.

726881585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1061283.

The product of its digits is 1075200, while the sum is 50.

The square root of 726881585 is about 26960.7415513743. The cubic root of 726881585 is about 899.1273784774.

The spelling of 726881585 in words is "seven hundred twenty-six million, eight hundred eighty-one thousand, five hundred eighty-five".