722453213 has 2 divisors, whose sum is σ = 722453214. Its totient is φ = 722453212.

The previous prime is 722453201. The next prime is 722453219. The reversal of 722453213 is 312354227.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 708517924 + 13935289 = 26618^2 + 3733^2 .

It is a cyclic number.

It is not a de Polignac number, because 722453213 - 2¹⁰ = 722452189 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (722453219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 361226606 + 361226607.

It is an arithmetic number, because the mean of its divisors is an integer number (361226607).

Almost surely, 2^722453213 is an apocalyptic number.

It is an amenable number.

722453213 is a deficient number, since it is larger than the sum of its proper divisors (1).

722453213 is an equidigital number, since it uses as much as digits as its factorization.

722453213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10080, while the sum is 29.

The square root of 722453213 is about 26878.4897827240. The cubic root of 722453213 is about 897.2977435471.

The spelling of 722453213 in words is "seven hundred twenty-two million, four hundred fifty-three thousand, two hundred thirteen".