23681747 has 2 divisors, whose sum is σ = 23681748. Its totient is φ = 23681746.

The previous prime is 23681729. The next prime is 23681759. The reversal of 23681747 is 74718632.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23681747 - 2⁸ = 23681491 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23681747.

It is not a weakly prime, because it can be changed into another prime (23681767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11840873 + 11840874.

It is an arithmetic number, because the mean of its divisors is an integer number (11840874).

Almost surely, 2^23681747 is an apocalyptic number.

23681747 is a deficient number, since it is larger than the sum of its proper divisors (1).

23681747 is an equidigital number, since it uses as much as digits as its factorization.

23681747 is an evil number, because the sum of its binary digits is even.

The product of its digits is 56448, while the sum is 38.

The square root of 23681747 is about 4866.3895240722. The cubic root of 23681747 is about 287.1692357379.

The spelling of 23681747 in words is "twenty-three million, six hundred eighty-one thousand, seven hundred forty-seven".