23808321 has 12 divisors (see below), whose sum is σ = 34619520. Its totient is φ = 15766200.

The previous prime is 23808319. The next prime is 23808371. The reversal of 23808321 is 12380832.

It is not a de Polignac number, because 23808321 - 2¹ = 23808319 is a prime.

It is a super-2 number, since 2×23808321² = 1133672297678082, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23808371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7401 + ... + 10118.

It is an arithmetic number, because the mean of its divisors is an integer number (2884960).

Almost surely, 2^23808321 is an apocalyptic number.

It is an amenable number.

23808321 is a deficient number, since it is larger than the sum of its proper divisors (10811199).

23808321 is a wasteful number, since it uses less digits than its factorization.

23808321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17676 (or 17673 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 23808321 is about 4879.3771118863. The cubic root of 23808321 is about 287.6799468307.

It can be divided in two parts, 2380 and 8321, that added together give a palindrome (10701).

The spelling of 23808321 in words is "twenty-three million, eight hundred eight thousand, three hundred twenty-one".