720707023 has 2 divisors, whose sum is σ = 720707024. Its totient is φ = 720707022.

The previous prime is 720707021. The next prime is 720707033. The reversal of 720707023 is 320707027.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 720707023 - 2¹ = 720707021 is a prime.

It is a super-2 number, since 2×720707023² = 1038837226003045058, which contains 22 as substring.

Together with 720707021, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 720706982 and 720707000.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (720707021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 360353511 + 360353512.

It is an arithmetic number, because the mean of its divisors is an integer number (360353512).

Almost surely, 2^720707023 is an apocalyptic number.

720707023 is a deficient number, since it is larger than the sum of its proper divisors (1).

720707023 is an equidigital number, since it uses as much as digits as its factorization.

720707023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4116, while the sum is 28.

The square root of 720707023 is about 26845.9870930461. The cubic root of 720707023 is about 896.5742289112.

The spelling of 720707023 in words is "seven hundred twenty million, seven hundred seven thousand, twenty-three".