23090447 has 2 divisors, whose sum is σ = 23090448. Its totient is φ = 23090446.

The previous prime is 23090423. The next prime is 23090477. The reversal of 23090447 is 74409032.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23090447 - 2⁶ = 23090383 is a prime.

It is a super-3 number, since 3×23090447³ (a number of 23 digits) contains 333 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23090477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11545223 + 11545224.

It is an arithmetic number, because the mean of its divisors is an integer number (11545224).

Almost surely, 2^23090447 is an apocalyptic number.

23090447 is a deficient number, since it is larger than the sum of its proper divisors (1).

23090447 is an equidigital number, since it uses as much as digits as its factorization.

23090447 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 23090447 is about 4805.2520225270. The cubic root of 23090447 is about 284.7589919007.

Adding to 23090447 its reverse (74409032), we get a palindrome (97499479).

The spelling of 23090447 in words is "twenty-three million, ninety thousand, four hundred forty-seven".