23688473 has 4 divisors (see below), whose sum is σ = 24328740. Its totient is φ = 23048208.

The previous prime is 23688451. The next prime is 23688479. The reversal of 23688473 is 37488632.

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 21279769 + 2408704 = 4613^2 + 1552^2 .

It is a cyclic number.

It is not a de Polignac number, because 23688473 - 2¹² = 23684377 is a prime.

It is a super-2 number, since 2×23688473² = 1122287506143458, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23688473.

It is not an unprimeable number, because it can be changed into a prime (23688479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 320078 + ... + 320151.

It is an arithmetic number, because the mean of its divisors is an integer number (6082185).

Almost surely, 2^23688473 is an apocalyptic number.

It is an amenable number.

23688473 is a deficient number, since it is larger than the sum of its proper divisors (640267).

23688473 is an equidigital number, since it uses as much as digits as its factorization.

23688473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 640266.

The product of its digits is 193536, while the sum is 41.

The square root of 23688473 is about 4867.0805417622. The cubic root of 23688473 is about 287.1964200703.

The spelling of 23688473 in words is "twenty-three million, six hundred eighty-eight thousand, four hundred seventy-three".