23047 has 4 divisors (see below), whose sum is σ = 24280. Its totient is φ = 21816.

The previous prime is 23041. The next prime is 23053. The reversal of 23047 is 74032.

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

It is an interprime number because it is at equal distance from previous prime (23041) and next prime (23053).

It is a cyclic number.

It is not a de Polignac number, because 23047 - 2³ = 23039 is a prime.

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 23047.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 588 + ... + 625.

It is an arithmetic number, because the mean of its divisors is an integer number (6070).

2²³⁰⁴⁷ is an apocalyptic number.

23047 is a deficient number, since it is larger than the sum of its proper divisors (1233).

23047 is a wasteful number, since it uses less digits than its factorization.

23047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1232.

The product of its (nonzero) digits is 168, while the sum is 16.

The square root of 23047 is about 151.8123842116. The cubic root of 23047 is about 28.4580278864.

Adding to 23047 its reverse (74032), we get a palindrome (97079).

The spelling of 23047 in words is "twenty-three thousand, forty-seven", and thus it is an iban number.