23887389 has 16 divisors (see below), whose sum is σ = 34099200. Its totient is φ = 14828976.

The previous prime is 23887361. The next prime is 23887433. The reversal of 23887389 is 98378832.

It is not a de Polignac number, because 23887389 - 2¹¹ = 23885341 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23887319) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 189 + ... + 6914.

It is an arithmetic number, because the mean of its divisors is an integer number (2131200).

Almost surely, 2^23887389 is an apocalyptic number.

It is an amenable number.

23887389 is a deficient number, since it is larger than the sum of its proper divisors (10211811).

23887389 is a wasteful number, since it uses less digits than its factorization.

23887389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7184.

The product of its digits is 580608, while the sum is 48.

The square root of 23887389 is about 4887.4726597701. The cubic root of 23887389 is about 287.9980589182.

The spelling of 23887389 in words is "twenty-three million, eight hundred eighty-seven thousand, three hundred eighty-nine".