23884389 has 10 divisors (see below), whose sum is σ = 35679270. Its totient is φ = 15922872.

The previous prime is 23884381. The next prime is 23884403. The reversal of 23884389 is 98348832.

It can be written as a sum of positive squares in only one way, i.e., 14630625 + 9253764 = 3825^2 + 3042^2 .

It is not a de Polignac number, because 23884389 - 2³ = 23884381 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23884381) 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 9 ways as a sum of consecutive naturals, for example, 147354 + ... + 147515.

It is an arithmetic number, because the mean of its divisors is an integer number (3567927).

Almost surely, 2^23884389 is an apocalyptic number.

It is an amenable number.

23884389 is a deficient number, since it is larger than the sum of its proper divisors (11794881).

23884389 is an equidigital number, since it uses as much as digits as its factorization.

23884389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294881 (or 294872 counting only the distinct ones).

The product of its digits is 331776, while the sum is 45.

The square root of 23884389 is about 4887.1657430458. The cubic root of 23884389 is about 287.9860019238.

The spelling of 23884389 in words is "twenty-three million, eight hundred eighty-four thousand, three hundred eighty-nine".