720223733 has 2 divisors, whose sum is σ = 720223734. Its totient is φ = 720223732.

The previous prime is 720223703. The next prime is 720223781. The reversal of 720223733 is 337322027.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 587674564 + 132549169 = 24242^2 + 11513^2 .

It is a cyclic number.

It is not a de Polignac number, because 720223733 - 2¹⁰ = 720222709 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 720223696 and 720223705.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (720223703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 360111866 + 360111867.

It is an arithmetic number, because the mean of its divisors is an integer number (360111867).

Almost surely, 2^720223733 is an apocalyptic number.

It is an amenable number.

720223733 is a deficient number, since it is larger than the sum of its proper divisors (1).

720223733 is an equidigital number, since it uses as much as digits as its factorization.

720223733 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10584, while the sum is 29.

The square root of 720223733 is about 26836.9844244841. The cubic root of 720223733 is about 896.3737765608.

The spelling of 720223733 in words is "seven hundred twenty million, two hundred twenty-three thousand, seven hundred thirty-three".