23045047 has 4 divisors (see below), whose sum is σ = 24400656. Its totient is φ = 21689440.

The previous prime is 23045041. The next prime is 23045051. The reversal of 23045047 is 74054032.

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

It is a cyclic number.

It is not a de Polignac number, because 23045047 - 2¹⁵ = 23012279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23045041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 677779 + ... + 677812.

It is an arithmetic number, because the mean of its divisors is an integer number (6100164).

Almost surely, 2^23045047 is an apocalyptic number.

23045047 is a deficient number, since it is larger than the sum of its proper divisors (1355609).

23045047 is a wasteful number, since it uses less digits than its factorization.

23045047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1355608.

The product of its (nonzero) digits is 3360, while the sum is 25.

The square root of 23045047 is about 4800.5257003791. The cubic root of 23045047 is about 284.5722402040.

Adding to 23045047 its reverse (74054032), we get a palindrome (97099079).

The spelling of 23045047 in words is "twenty-three million, forty-five thousand, forty-seven".