23420167 has 2 divisors, whose sum is σ = 23420168. Its totient is φ = 23420166.

The previous prime is 23420123. The next prime is 23420171. The reversal of 23420167 is 76102432.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23420167 - 2⁷ = 23420039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23420107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11710083 + 11710084.

It is an arithmetic number, because the mean of its divisors is an integer number (11710084).

Almost surely, 2^23420167 is an apocalyptic number.

23420167 is a deficient number, since it is larger than the sum of its proper divisors (1).

23420167 is an equidigital number, since it uses as much as digits as its factorization.

23420167 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 23420167 is about 4839.4387071230. The cubic root of 23420167 is about 286.1079962823.

Adding to 23420167 its reverse (76102432), we get a palindrome (99522599).

The spelling of 23420167 in words is "twenty-three million, four hundred twenty thousand, one hundred sixty-seven".