720753023 has 2 divisors, whose sum is σ = 720753024. Its totient is φ = 720753022.

The previous prime is 720753013. The next prime is 720753083. The reversal of 720753023 is 320357027.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 720753023 - 2⁶ = 720752959 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (720753013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 360376511 + 360376512.

It is an arithmetic number, because the mean of its divisors is an integer number (360376512).

Almost surely, 2^720753023 is an apocalyptic number.

720753023 is a deficient number, since it is larger than the sum of its proper divisors (1).

720753023 is an equidigital number, since it uses as much as digits as its factorization.

720753023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8820, while the sum is 29.

The square root of 720753023 is about 26846.8438182219. The cubic root of 720753023 is about 896.5933034846.

The spelling of 720753023 in words is "seven hundred twenty million, seven hundred fifty-three thousand, twenty-three".