722431033 has 2 divisors, whose sum is σ = 722431034. Its totient is φ = 722431032.

The previous prime is 722431027. The next prime is 722431043. The reversal of 722431033 is 330134227.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 579461184 + 142969849 = 24072^2 + 11957^2 .

It is an emirp because it is prime and its reverse (330134227) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 722431033 - 2²⁹ = 185560121 is a prime.

It is a super-3 number, since 3×722431033³ (a number of 28 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 722430989 and 722431007.

It is not a weakly prime, because it can be changed into another prime (722431013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 361215516 + 361215517.

It is an arithmetic number, because the mean of its divisors is an integer number (361215517).

Almost surely, 2^722431033 is an apocalyptic number.

It is an amenable number.

722431033 is a deficient number, since it is larger than the sum of its proper divisors (1).

722431033 is an equidigital number, since it uses as much as digits as its factorization.

722431033 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 25.

The square root of 722431033 is about 26878.0771819712. The cubic root of 722431033 is about 897.2885608221.

The spelling of 722431033 in words is "seven hundred twenty-two million, four hundred thirty-one thousand, thirty-three".