23920067 has 2 divisors, whose sum is σ = 23920068. Its totient is φ = 23920066.

The previous prime is 23920007. The next prime is 23920073. The reversal of 23920067 is 76002932.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23920067 - 2¹² = 23915971 is a prime.

It is not a weakly prime, because it can be changed into another prime (23920007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11960033 + 11960034.

It is an arithmetic number, because the mean of its divisors is an integer number (11960034).

Almost surely, 2^23920067 is an apocalyptic number.

23920067 is a deficient number, since it is larger than the sum of its proper divisors (1).

23920067 is an equidigital number, since it uses as much as digits as its factorization.

23920067 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 23920067 is about 4890.8145538346. The cubic root of 23920067 is about 288.1293264016.

Adding to 23920067 its reverse (76002932), we get a palindrome (99922999).

The spelling of 23920067 in words is "twenty-three million, nine hundred twenty thousand, sixty-seven".