723433 has 4 divisors (see below), whose sum is σ = 730180. Its totient is φ = 716688.

The previous prime is 723421. The next prime is 723439. The reversal of 723433 is 334327.

723433 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 can be written as a sum of positive squares in 2 ways, for example, as 200704 + 522729 = 448^2 + 723^2 .

It is a cyclic number.

It is not a de Polignac number, because 723433 - 2⁹ = 722921 is a prime.

It is a Duffinian number.

723433 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (723439) 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, 3210 + ... + 3427.

It is an arithmetic number, because the mean of its divisors is an integer number (182545).

2⁷²³⁴³³ is an apocalyptic number.

It is an amenable number.

723433 is a deficient number, since it is larger than the sum of its proper divisors (6747).

723433 is a wasteful number, since it uses less digits than its factorization.

723433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6746.

The product of its digits is 1512, while the sum is 22.

The square root of 723433 is about 850.5486464630. The cubic root of 723433 is about 89.7703197035.

It can be divided in two parts, 723 and 433, that added together give a square (1156 = 34²).

The spelling of 723433 in words is "seven hundred twenty-three thousand, four hundred thirty-three".