722618033 has 2 divisors, whose sum is σ = 722618034. Its totient is φ = 722618032.

The previous prime is 722618023. The next prime is 722618041. The reversal of 722618033 is 330816227.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 701614144 + 21003889 = 26488^2 + 4583^2 .

It is a cyclic number.

It is not a de Polignac number, because 722618033 - 2¹⁰ = 722617009 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (722618023) 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 as a sum of consecutive naturals, namely, 361309016 + 361309017.

It is an arithmetic number, because the mean of its divisors is an integer number (361309017).

Almost surely, 2^722618033 is an apocalyptic number.

It is an amenable number.

722618033 is a deficient number, since it is larger than the sum of its proper divisors (1).

722618033 is an equidigital number, since it uses as much as digits as its factorization.

722618033 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 722618033 is about 26881.5556283486. Note that the first 3 decimals coincide. The cubic root of 722618033 is about 897.3659746640.

The spelling of 722618033 in words is "seven hundred twenty-two million, six hundred eighteen thousand, thirty-three".