722013 has 16 divisors (see below), whose sum is σ = 1024320. Its totient is φ = 451584.

The previous prime is 722011. The next prime is 722023. The reversal of 722013 is 310227.

It is not a de Polignac number, because 722013 - 2¹ = 722011 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 721983 and 722001.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 722013.

It is not an unprimeable number, because it can be changed into a prime (722011) 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, 3645 + ... + 3837.

It is an arithmetic number, because the mean of its divisors is an integer number (64020).

2⁷²²⁰¹³ is an apocalyptic number.

It is an amenable number.

722013 is a deficient number, since it is larger than the sum of its proper divisors (302307).

722013 is a wasteful number, since it uses less digits than its factorization.

722013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268.

The product of its (nonzero) digits is 84, while the sum is 15.

The square root of 722013 is about 849.7134811217. The cubic root of 722013 is about 89.7115456131.

The spelling of 722013 in words is "seven hundred twenty-two thousand, thirteen".