23688845 has 4 divisors (see below), whose sum is σ = 28426620. Its totient is φ = 18951072.

The previous prime is 23688817. The next prime is 23688851. The reversal of 23688845 is 54888632.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8369449 + 15319396 = 2893^2 + 3914^2 .

It is a cyclic number.

It is not a de Polignac number, because 23688845 - 2¹⁰ = 23687821 is a prime.

It is a super-2 number, since 2×23688845² = 1122322754868050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23688796 and 23688805.

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, 2368880 + ... + 2368889.

It is an arithmetic number, because the mean of its divisors is an integer number (7106655).

Almost surely, 2^23688845 is an apocalyptic number.

It is an amenable number.

23688845 is a deficient number, since it is larger than the sum of its proper divisors (4737775).

23688845 is an equidigital number, since it uses as much as digits as its factorization.

23688845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4737774.

The product of its digits is 368640, while the sum is 44.

The square root of 23688845 is about 4867.1187575402. The cubic root of 23688845 is about 287.1979234247.

The spelling of 23688845 in words is "twenty-three million, six hundred eighty-eight thousand, eight hundred forty-five".