23984491 has 4 divisors (see below), whose sum is σ = 24117184. Its totient is φ = 23851800.

The previous prime is 23984449. The next prime is 23984507. The reversal of 23984491 is 19448932.

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 23984491 - 2¹¹ = 23982443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23984291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66075 + ... + 66436.

It is an arithmetic number, because the mean of its divisors is an integer number (6029296).

Almost surely, 2^23984491 is an apocalyptic number.

23984491 is a deficient number, since it is larger than the sum of its proper divisors (132693).

23984491 is a wasteful number, since it uses less digits than its factorization.

23984491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132692.

The product of its digits is 62208, while the sum is 40.

The square root of 23984491 is about 4897.3963490818. The cubic root of 23984491 is about 288.3877677603.

It can be divided in two parts, 2398 and 4491, that added together give a square (6889 = 83²).

The spelling of 23984491 in words is "twenty-three million, nine hundred eighty-four thousand, four hundred ninety-one".