720727933 has 2 divisors, whose sum is σ = 720727934. Its totient is φ = 720727932.

The previous prime is 720727913. The next prime is 720727957. The reversal of 720727933 is 339727027.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 644042884 + 76685049 = 25378^2 + 8757^2 .

It is a cyclic number.

It is not a de Polignac number, because 720727933 - 2⁵ = 720727901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (720727913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 360363966 + 360363967.

It is an arithmetic number, because the mean of its divisors is an integer number (360363967).

Almost surely, 2^720727933 is an apocalyptic number.

It is an amenable number.

720727933 is a deficient number, since it is larger than the sum of its proper divisors (1).

720727933 is an equidigital number, since it uses as much as digits as its factorization.

720727933 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 111132, while the sum is 40.

The square root of 720727933 is about 26846.3765339012. The cubic root of 720727933 is about 896.5828996494.

The spelling of 720727933 in words is "seven hundred twenty million, seven hundred twenty-seven thousand, nine hundred thirty-three".