8581087 has 2 divisors, whose sum is σ = 8581088. Its totient is φ = 8581086.

The previous prime is 8581051. The next prime is 8581099. The reversal of 8581087 is 7801858.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8581087 - 2⁷ = 8580959 is a prime.

8581087 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8581007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4290543 + 4290544.

It is an arithmetic number, because the mean of its divisors is an integer number (4290544).

Almost surely, 2^8581087 is an apocalyptic number.

8581087 is a deficient number, since it is larger than the sum of its proper divisors (1).

8581087 is an equidigital number, since it uses as much as digits as its factorization.

8581087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17920, while the sum is 37.

The square root of 8581087 is about 2929.3492451396. The cubic root of 8581087 is about 204.7296615013.

The spelling of 8581087 in words is "eight million, five hundred eighty-one thousand, eighty-seven".