723023 has 4 divisors (see below), whose sum is σ = 826320. Its totient is φ = 619728.

The previous prime is 722983. The next prime is 723029. The reversal of 723023 is 320327.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-723023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 722992 and 723010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (723029) 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, 51638 + ... + 51651.

It is an arithmetic number, because the mean of its divisors is an integer number (206580).

2⁷²³⁰²³ is an apocalyptic number.

723023 is a deficient number, since it is larger than the sum of its proper divisors (103297).

723023 is a wasteful number, since it uses less digits than its factorization.

723023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103296.

The product of its (nonzero) digits is 252, while the sum is 17.

The square root of 723023 is about 850.3075914044. The cubic root of 723023 is about 89.7533576230.

It can be divided in two parts, 7 and 23023, that multiplied together give a palindrome (161161).

The spelling of 723023 in words is "seven hundred twenty-three thousand, twenty-three", and thus it is an iban number.