723985873 has 16 divisors (see below), whose sum is σ = 818496000. Its totient is φ = 635754240.

The previous prime is 723985849. The next prime is 723985891. The reversal of 723985873 is 378589327.

723985873 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 723985873 - 2²¹ = 721888721 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 723985873.

It is not an unprimeable number, because it can be changed into a prime (723985813) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8553 + ... + 39001.

It is an arithmetic number, because the mean of its divisors is an integer number (51156000).

Almost surely, 2^723985873 is an apocalyptic number.

It is an amenable number.

723985873 is a deficient number, since it is larger than the sum of its proper divisors (94510127).

723985873 is a wasteful number, since it uses less digits than its factorization.

723985873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30552.

The product of its digits is 2540160, while the sum is 52.

The square root of 723985873 is about 26906.9855799567. The cubic root of 723985873 is about 897.9318242795.

The spelling of 723985873 in words is "seven hundred twenty-three million, nine hundred eighty-five thousand, eight hundred seventy-three".