23638609 has 8 divisors (see below), whose sum is σ = 23982560. Its totient is φ = 23296896.

The previous prime is 23638607. The next prime is 23638627. The reversal of 23638609 is 90683632.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 23638609 - 2¹ = 23638607 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23638607) 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 7 ways as a sum of consecutive naturals, for example, 36442 + ... + 37084.

It is an arithmetic number, because the mean of its divisors is an integer number (2997820).

Almost surely, 2^23638609 is an apocalyptic number.

It is an amenable number.

23638609 is a deficient number, since it is larger than the sum of its proper divisors (343951).

23638609 is an equidigital number, since it uses as much as digits as its factorization.

23638609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1119.

The product of its (nonzero) digits is 46656, while the sum is 37.

The square root of 23638609 is about 4861.9552651171. The cubic root of 23638609 is about 286.9947633065.

The spelling of 23638609 in words is "twenty-three million, six hundred thirty-eight thousand, six hundred nine".