23243605 has 16 divisors (see below), whose sum is σ = 34775424. Its totient is φ = 14489280.

The previous prime is 23243603. The next prime is 23243621. The reversal of 23243605 is 50634232.

It is a happy number.

It is not a de Polignac number, because 23243605 - 2¹ = 23243603 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23243605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23243603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29802 + ... + 30571.

It is an arithmetic number, because the mean of its divisors is an integer number (2173464).

Almost surely, 2^23243605 is an apocalyptic number.

It is an amenable number.

23243605 is a deficient number, since it is larger than the sum of its proper divisors (11531819).

23243605 is a wasteful number, since it uses less digits than its factorization.

23243605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60396.

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 23243605 is about 4821.1622042823. The cubic root of 23243605 is about 285.3872032622.

Adding to 23243605 its reverse (50634232), we get a palindrome (73877837).

It can be divided in two parts, 2324 and 3605, that added together give a square (5929 = 77²).

The spelling of 23243605 in words is "twenty-three million, two hundred forty-three thousand, six hundred five".