720506333 has 2 divisors, whose sum is σ = 720506334. Its totient is φ = 720506332.

The previous prime is 720506299. The next prime is 720506341. The reversal of 720506333 is 333605027.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 681105604 + 39400729 = 26098^2 + 6277^2 .

It is a cyclic number.

It is not a de Polignac number, because 720506333 - 2¹⁶ = 720440797 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 720506296 and 720506305.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (720506233) 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, 360253166 + 360253167.

It is an arithmetic number, because the mean of its divisors is an integer number (360253167).

Almost surely, 2^720506333 is an apocalyptic number.

It is an amenable number.

720506333 is a deficient number, since it is larger than the sum of its proper divisors (1).

720506333 is an equidigital number, since it uses as much as digits as its factorization.

720506333 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11340, while the sum is 29.

The square root of 720506333 is about 26842.2490302135. The cubic root of 720506333 is about 896.4910003683.

The spelling of 720506333 in words is "seven hundred twenty million, five hundred six thousand, three hundred thirty-three".