23247643 has 2 divisors, whose sum is σ = 23247644. Its totient is φ = 23247642.

The previous prime is 23247607. The next prime is 23247661. The reversal of 23247643 is 34674232.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23247643 - 2⁹ = 23247131 is a prime.

It is not a weakly prime, because it can be changed into another prime (23247673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11623821 + 11623822.

It is an arithmetic number, because the mean of its divisors is an integer number (11623822).

Almost surely, 2^23247643 is an apocalyptic number.

23247643 is a deficient number, since it is larger than the sum of its proper divisors (1).

23247643 is an equidigital number, since it uses as much as digits as its factorization.

23247643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24192, while the sum is 31.

The square root of 23247643 is about 4821.5809647874. The cubic root of 23247643 is about 285.4037286219.

The spelling of 23247643 in words is "twenty-three million, two hundred forty-seven thousand, six hundred forty-three".