23387109 has 8 divisors (see below), whose sum is σ = 31233600. Its totient is φ = 15566016.

The previous prime is 23387107. The next prime is 23387171. The reversal of 23387109 is 90178332.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 23387109 - 2¹ = 23387107 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23387109.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23387101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4084 + ... + 7965.

It is an arithmetic number, because the mean of its divisors is an integer number (3904200).

Almost surely, 2^23387109 is an apocalyptic number.

It is an amenable number.

23387109 is a deficient number, since it is larger than the sum of its proper divisors (7846491).

23387109 is a wasteful number, since it uses less digits than its factorization.

23387109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12699.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 23387109 is about 4836.0220222824. The cubic root of 23387109 is about 285.9733173144.

The spelling of 23387109 in words is "twenty-three million, three hundred eighty-seven thousand, one hundred nine".