23042047 has 4 divisors (see below), whose sum is σ = 26333776. Its totient is φ = 19750320.

The previous prime is 23042029. The next prime is 23042053. The reversal of 23042047 is 74024032.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23042047 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23042017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1645854 + ... + 1645867.

It is an arithmetic number, because the mean of its divisors is an integer number (6583444).

Almost surely, 2^23042047 is an apocalyptic number.

23042047 is a deficient number, since it is larger than the sum of its proper divisors (3291729).

23042047 is an equidigital number, since it uses as much as digits as its factorization.

23042047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3291728.

The product of its (nonzero) digits is 1344, while the sum is 22.

The square root of 23042047 is about 4800.2132244308. The cubic root of 23042047 is about 284.5598911474.

Adding to 23042047 its reverse (74024032), we get a palindrome (97066079).

The spelling of 23042047 in words is "twenty-three million, forty-two thousand, forty-seven".