722715 has 16 divisors (see below), whose sum is σ = 1321728. Its totient is φ = 330336.

The previous prime is 722713. The next prime is 722723. The reversal of 722715 is 517227.

722715 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 722715 - 2¹ = 722713 is a prime.

722715 is a lucky number.

It is a nialpdrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (722713) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3337 + ... + 3546.

It is an arithmetic number, because the mean of its divisors is an integer number (82608).

2⁷²²⁷¹⁵ is an apocalyptic number.

722715 is a deficient number, since it is larger than the sum of its proper divisors (599013).

722715 is a wasteful number, since it uses less digits than its factorization.

722715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6898.

The product of its digits is 980, while the sum is 24.

The square root of 722715 is about 850.1264611809. The cubic root of 722715 is about 89.7406111588.

It can be divided in two parts, 7 and 22715, that added together give a palindrome (22722).

The spelling of 722715 in words is "seven hundred twenty-two thousand, seven hundred fifteen".