23273489 has 2 divisors, whose sum is σ = 23273490. Its totient is φ = 23273488.

The previous prime is 23273443. The next prime is 23273491. The reversal of 23273489 is 98437232.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19509889 + 3763600 = 4417^2 + 1940^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23273489 is a prime.

Together with 23273491, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (23273429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11636744 + 11636745.

It is an arithmetic number, because the mean of its divisors is an integer number (11636745).

Almost surely, 2^23273489 is an apocalyptic number.

It is an amenable number.

23273489 is a deficient number, since it is larger than the sum of its proper divisors (1).

23273489 is an equidigital number, since it uses as much as digits as its factorization.

23273489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72576, while the sum is 38.

The square root of 23273489 is about 4824.2604614594. The cubic root of 23273489 is about 285.5094570863.

The spelling of 23273489 in words is "twenty-three million, two hundred seventy-three thousand, four hundred eighty-nine".