23040047 has 2 divisors, whose sum is σ = 23040048. Its totient is φ = 23040046.

The previous prime is 23040023. The next prime is 23040071. The reversal of 23040047 is 74004032.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (23040023) and next prime (23040071).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23040047 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23040077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11520023 + 11520024.

It is an arithmetic number, because the mean of its divisors is an integer number (11520024).

Almost surely, 2^23040047 is an apocalyptic number.

23040047 is a deficient number, since it is larger than the sum of its proper divisors (1).

23040047 is an equidigital number, since it uses as much as digits as its factorization.

23040047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 672, while the sum is 20.

The square root of 23040047 is about 4800.0048958308. The cubic root of 23040047 is about 284.5516578475.

Adding to 23040047 its reverse (74004032), we get a palindrome (97044079).

The spelling of 23040047 in words is "twenty-three million, forty thousand, forty-seven".