23581087 has 2 divisors, whose sum is σ = 23581088. Its totient is φ = 23581086.

The previous prime is 23581073. The next prime is 23581121. The reversal of 23581087 is 78018532.

It is an a-pointer prime, because the next prime (23581121) can be obtained adding 23581087 to its sum of digits (34).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23581087 - 2⁷ = 23580959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23581007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11790543 + 11790544.

It is an arithmetic number, because the mean of its divisors is an integer number (11790544).

Almost surely, 2^23581087 is an apocalyptic number.

23581087 is a deficient number, since it is larger than the sum of its proper divisors (1).

23581087 is an equidigital number, since it uses as much as digits as its factorization.

23581087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13440, while the sum is 34.

The square root of 23581087 is about 4856.0361407222. The cubic root of 23581087 is about 286.7617839821.

The spelling of 23581087 in words is "twenty-three million, five hundred eighty-one thousand, eighty-seven".