23272345 has 4 divisors (see below), whose sum is σ = 27926820. Its totient is φ = 18617872.

The previous prime is 23272339. The next prime is 23272349. The reversal of 23272345 is 54327232.

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 8549776 + 14722569 = 2924^2 + 3837^2 .

It is a cyclic number.

It is not a de Polignac number, because 23272345 - 2⁵ = 23272313 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (23272349) 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 3 ways as a sum of consecutive naturals, for example, 2327230 + ... + 2327239.

It is an arithmetic number, because the mean of its divisors is an integer number (6981705).

Almost surely, 2^23272345 is an apocalyptic number.

It is an amenable number.

23272345 is a deficient number, since it is larger than the sum of its proper divisors (4654475).

23272345 is an equidigital number, since it uses as much as digits as its factorization.

23272345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4654474.

The product of its digits is 10080, while the sum is 28.

The square root of 23272345 is about 4824.1418926064. The cubic root of 23272345 is about 285.5047789713.

Adding to 23272345 its reverse (54327232), we get a palindrome (77599577).

The spelling of 23272345 in words is "twenty-three million, two hundred seventy-two thousand, three hundred forty-five".