723005663 has 4 divisors (see below), whose sum is σ = 727858200. Its totient is φ = 718153128.

The previous prime is 723005639. The next prime is 723005683. The reversal of 723005663 is 366500327.

723005663 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 723005663 - 2²⁴ = 706228447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (723005623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2426045 + ... + 2426342.

It is an arithmetic number, because the mean of its divisors is an integer number (181964550).

Almost surely, 2^723005663 is an apocalyptic number.

723005663 is a deficient number, since it is larger than the sum of its proper divisors (4852537).

723005663 is a wasteful number, since it uses less digits than its factorization.

723005663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4852536.

The product of its (nonzero) digits is 22680, while the sum is 32.

The square root of 723005663 is about 26888.7646239094. The cubic root of 723005663 is about 897.5264023394.

The spelling of 723005663 in words is "seven hundred twenty-three million, five thousand, six hundred sixty-three".