23603243 has 4 divisors (see below), whose sum is σ = 23621808. Its totient is φ = 23584680.

The previous prime is 23603231. The next prime is 23603257. The reversal of 23603243 is 34230632.

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 23603243 - 2⁴ = 23603227 is a prime.

It is a super-2 number, since 2×23603243² = 1114226160234098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23603213) 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, 7223 + ... + 9968.

It is an arithmetic number, because the mean of its divisors is an integer number (5905452).

Almost surely, 2^23603243 is an apocalyptic number.

23603243 is a deficient number, since it is larger than the sum of its proper divisors (18565).

23603243 is a wasteful number, since it uses less digits than its factorization.

23603243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18564.

The product of its (nonzero) digits is 2592, while the sum is 23.

The square root of 23603243 is about 4858.3168896234. The cubic root of 23603243 is about 286.8515664602.

Adding to 23603243 its reverse (34230632), we get a palindrome (57833875).

The spelling of 23603243 in words is "twenty-three million, six hundred three thousand, two hundred forty-three".