23247689 has 2 divisors, whose sum is σ = 23247690. Its totient is φ = 23247688.

The previous prime is 23247683. The next prime is 23247701. The reversal of 23247689 is 98674232.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22401289 + 846400 = 4733^2 + 920^2 .

It is a cyclic number.

It is not a de Polignac number, because 23247689 - 2⁴ = 23247673 is a prime.

It is a super-3 number, since 3×23247689³ (a number of 23 digits) contains 333 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (23247683) 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, 11623844 + 11623845.

It is an arithmetic number, because the mean of its divisors is an integer number (11623845).

Almost surely, 2^23247689 is an apocalyptic number.

It is an amenable number.

23247689 is a deficient number, since it is larger than the sum of its proper divisors (1).

23247689 is an equidigital number, since it uses as much as digits as its factorization.

23247689 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 145152, while the sum is 41.

The square root of 23247689 is about 4821.5857350046. The cubic root of 23247689 is about 285.4039168641.

The spelling of 23247689 in words is "twenty-three million, two hundred forty-seven thousand, six hundred eighty-nine".