722897533 has 2 divisors, whose sum is σ = 722897534. Its totient is φ = 722897532.

The previous prime is 722897449. The next prime is 722897543. The reversal of 722897533 is 335798227.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 712516249 + 10381284 = 26693^2 + 3222^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-722897533 is a prime.

It is a super-3 number, since 3×722897533³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (722897543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 361448766 + 361448767.

It is an arithmetic number, because the mean of its divisors is an integer number (361448767).

Almost surely, 2^722897533 is an apocalyptic number.

It is an amenable number.

722897533 is a deficient number, since it is larger than the sum of its proper divisors (1).

722897533 is an equidigital number, since it uses as much as digits as its factorization.

722897533 is an evil number, because the sum of its binary digits is even.

The product of its digits is 635040, while the sum is 46.

The square root of 722897533 is about 26886.7538576155. The cubic root of 722897533 is about 897.4816565541.

The spelling of 722897533 in words is "seven hundred twenty-two million, eight hundred ninety-seven thousand, five hundred thirty-three".