722585 has 8 divisors (see below), whose sum is σ = 918216. Its totient is φ = 544000.

The previous prime is 722581. The next prime is 722599. The reversal of 722585 is 585227.

It can be written as a sum of positive squares in 4 ways, for example, as 35344 + 687241 = 188^2 + 829^2 .

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

It is not a de Polignac number, because 722585 - 2² = 722581 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (722581) 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, 4166 + ... + 4335.

It is an arithmetic number, because the mean of its divisors is an integer number (114777).

2⁷²²⁵⁸⁵ is an apocalyptic number.

It is an amenable number.

722585 is a deficient number, since it is larger than the sum of its proper divisors (195631).

722585 is a wasteful number, since it uses less digits than its factorization.

722585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8523.

The product of its digits is 5600, while the sum is 29.

The square root of 722585 is about 850.0499985295. The cubic root of 722585 is about 89.7352300708.

It can be divided in two parts, 7225 and 85, that multiplied together give a cube (614125 = 85³).

The spelling of 722585 in words is "seven hundred twenty-two thousand, five hundred eighty-five".