23640806 has 8 divisors (see below), whose sum is σ = 40527120. Its totient is φ = 10131768.

The previous prime is 23640791. The next prime is 23640821. The reversal of 23640806 is 60804632.

It is an interprime number because it is at equal distance from previous prime (23640791) and next prime (23640821).

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 844301 + ... + 844328.

It is an arithmetic number, because the mean of its divisors is an integer number (5065890).

Almost surely, 2^23640806 is an apocalyptic number.

23640806 is a deficient number, since it is larger than the sum of its proper divisors (16886314).

23640806 is a wasteful number, since it uses less digits than its factorization.

23640806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1688638.

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 23640806 is about 4862.1811977753. The cubic root of 23640806 is about 287.0036542409.

The spelling of 23640806 in words is "twenty-three million, six hundred forty thousand, eight hundred six".