722315 has 16 divisors (see below), whose sum is σ = 988416. Its totient is φ = 501600.

The previous prime is 722311. The next prime is 722317. The reversal of 722315 is 513227.

722315 is nontrivially palindromic in base 7.

It is not a de Polignac number, because 722315 - 2² = 722311 is a prime.

It is not an unprimeable number, because it can be changed into a prime (722311) 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, 980 + ... + 1550.

It is an arithmetic number, because the mean of its divisors is an integer number (61776).

2⁷²²³¹⁵ is an apocalyptic number.

722315 is a deficient number, since it is larger than the sum of its proper divisors (266101).

722315 is a wasteful number, since it uses less digits than its factorization.

722315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 610.

The product of its digits is 420, while the sum is 20.

The square root of 722315 is about 849.8911695035. The cubic root of 722315 is about 89.7240519024.

It can be divided in two parts, 7223 and 15, that multiplied together give a triangular number (108345 = T₄₆₅).

The spelling of 722315 in words is "seven hundred twenty-two thousand, three hundred fifteen".