720527723 has 2 divisors, whose sum is σ = 720527724. Its totient is φ = 720527722.

The previous prime is 720527681. The next prime is 720527729. The reversal of 720527723 is 327725027.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 720527723 - 2⁶ = 720527659 is a prime.

It is a super-2 number, since 2×720527723² = 1038320399223129458, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (720527729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 360263861 + 360263862.

It is an arithmetic number, because the mean of its divisors is an integer number (360263862).

Almost surely, 2^720527723 is an apocalyptic number.

720527723 is a deficient number, since it is larger than the sum of its proper divisors (1).

720527723 is an equidigital number, since it uses as much as digits as its factorization.

720527723 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41160, while the sum is 35.

The square root of 720527723 is about 26842.6474662988. The cubic root of 720527723 is about 896.4998717928.

The spelling of 720527723 in words is "seven hundred twenty million, five hundred twenty-seven thousand, seven hundred twenty-three".