8715887 has 2 divisors, whose sum is σ = 8715888. Its totient is φ = 8715886.

The previous prime is 8715881. The next prime is 8715901. The reversal of 8715887 is 7885178.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8715887 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8715881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4357943 + 4357944.

It is an arithmetic number, because the mean of its divisors is an integer number (4357944).

Almost surely, 2^8715887 is an apocalyptic number.

8715887 is a deficient number, since it is larger than the sum of its proper divisors (1).

8715887 is an equidigital number, since it uses as much as digits as its factorization.

8715887 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 125440, while the sum is 44.

The square root of 8715887 is about 2952.2681111308. The cubic root of 8715887 is about 205.7961268873.

The spelling of 8715887 in words is "eight million, seven hundred fifteen thousand, eight hundred eighty-seven".