725923 has 4 divisors (see below), whose sum is σ = 791928. Its totient is φ = 659920.

The previous prime is 725909. The next prime is 725929. The reversal of 725923 is 329527.

725923 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 725923 - 2⁵ = 725891 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 725891 and 725900.

It is not an unprimeable number, because it can be changed into a prime (725929) 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, 32986 + ... + 33007.

It is an arithmetic number, because the mean of its divisors is an integer number (197982).

2⁷²⁵⁹²³ is an apocalyptic number.

725923 is a deficient number, since it is larger than the sum of its proper divisors (66005).

725923 is a wasteful number, since it uses less digits than its factorization.

725923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66004.

The product of its digits is 3780, while the sum is 28.

The square root of 725923 is about 852.0111501618. The cubic root of 725923 is about 89.8731959109.

It can be divided in two parts, 72 and 5923, that added together give a palindrome (5995).

The spelling of 725923 in words is "seven hundred twenty-five thousand, nine hundred twenty-three".