23688223 has 6 divisors (see below), whose sum is σ = 25650744. Its totient is φ = 21865896.

The previous prime is 23688199. The next prime is 23688233. The reversal of 23688223 is 32288632.

It is a de Polignac number, because none of the positive numbers 2^k-23688223 is a prime.

It is a super-2 number, since 2×23688223² = 1122263817795458, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23688233) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 69915 + ... + 70252.

It is an arithmetic number, because the mean of its divisors is an integer number (4275124).

Almost surely, 2^23688223 is an apocalyptic number.

23688223 is a deficient number, since it is larger than the sum of its proper divisors (1962521).

23688223 is a wasteful number, since it uses less digits than its factorization.

23688223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140193 (or 140180 counting only the distinct ones).

The product of its digits is 27648, while the sum is 34.

The square root of 23688223 is about 4867.0548589470. The cubic root of 23688223 is about 287.1954097427.

The spelling of 23688223 in words is "twenty-three million, six hundred eighty-eight thousand, two hundred twenty-three".