23720267 has 2 divisors, whose sum is σ = 23720268. Its totient is φ = 23720266.

The previous prime is 23720261. The next prime is 23720269. The reversal of 23720267 is 76202732.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23720267 - 2⁴ = 23720251 is a prime.

Together with 23720269, 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 (23720261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11860133 + 11860134.

It is an arithmetic number, because the mean of its divisors is an integer number (11860134).

Almost surely, 2^23720267 is an apocalyptic number.

23720267 is a deficient number, since it is larger than the sum of its proper divisors (1).

23720267 is an equidigital number, since it uses as much as digits as its factorization.

23720267 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7056, while the sum is 29.

The square root of 23720267 is about 4870.3456756169. The cubic root of 23720267 is about 287.3248516053.

Adding to 23720267 its reverse (76202732), we get a palindrome (99922999).

The spelling of 23720267 in words is "twenty-three million, seven hundred twenty thousand, two hundred sixty-seven".