4320023 has 4 divisors (see below), whose sum is σ = 4574160. Its totient is φ = 4065888.

The previous prime is 4319993. The next prime is 4320059. The reversal of 4320023 is 3200234.

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 4320023 - 2⁸ = 4319767 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 (4320223) 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, 127043 + ... + 127076.

It is an arithmetic number, because the mean of its divisors is an integer number (1143540).

Almost surely, 2^4320023 is an apocalyptic number.

4320023 is a deficient number, since it is larger than the sum of its proper divisors (254137).

4320023 is a wasteful number, since it uses less digits than its factorization.

4320023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254136.

The product of its (nonzero) digits is 144, while the sum is 14.

The square root of 4320023 is about 2078.4665020154. The cubic root of 4320023 is about 162.8653460304.

Adding to 4320023 its reverse (3200234), we get a palindrome (7520257).

The spelling of 4320023 in words is "four million, three hundred twenty thousand, twenty-three".