23423187 has 4 divisors (see below), whose sum is σ = 31230920. Its totient is φ = 15615456.

The previous prime is 23423173. The next prime is 23423203. The reversal of 23423187 is 78132432.

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

It is not a de Polignac number, because 23423187 - 2⁶ = 23423123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23423107) 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, 3903862 + ... + 3903867.

It is an arithmetic number, because the mean of its divisors is an integer number (7807730).

Almost surely, 2^23423187 is an apocalyptic number.

23423187 is a deficient number, since it is larger than the sum of its proper divisors (7807733).

23423187 is an equidigital number, since it uses as much as digits as its factorization.

23423187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7807732.

The product of its digits is 8064, while the sum is 30.

The square root of 23423187 is about 4839.7507167209. The cubic root of 23423187 is about 286.1202935048.

The spelling of 23423187 in words is "twenty-three million, four hundred twenty-three thousand, one hundred eighty-seven".