722524213 has 4 divisors (see below), whose sum is σ = 731229408. Its totient is φ = 713819020.

The previous prime is 722524189. The next prime is 722524261. The reversal of 722524213 is 312425227.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 722524213 - 2¹⁷ = 722393141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (722524273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4352473 + ... + 4352638.

It is an arithmetic number, because the mean of its divisors is an integer number (182807352).

Almost surely, 2^722524213 is an apocalyptic number.

It is an amenable number.

722524213 is a deficient number, since it is larger than the sum of its proper divisors (8705195).

722524213 is an equidigital number, since it uses as much as digits as its factorization.

722524213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8705194.

The product of its digits is 6720, while the sum is 28.

The square root of 722524213 is about 26879.8105090047. The cubic root of 722524213 is about 897.3271369398.

The spelling of 722524213 in words is "seven hundred twenty-two million, five hundred twenty-four thousand, two hundred thirteen".