8315887 has 2 divisors, whose sum is σ = 8315888. Its totient is φ = 8315886.

The previous prime is 8315831. The next prime is 8315927. The reversal of 8315887 is 7885138.

It is an a-pointer prime, because the next prime (8315927) can be obtained adding 8315887 to its sum of digits (40).

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8315887 is a prime.

It is a Chen prime.

8315887 is a lucky number.

It is a plaindrome in base 14.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8315807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4157943 + 4157944.

It is an arithmetic number, because the mean of its divisors is an integer number (4157944).

Almost surely, 2^8315887 is an apocalyptic number.

8315887 is a deficient number, since it is larger than the sum of its proper divisors (1).

8315887 is an equidigital number, since it uses as much as digits as its factorization.

8315887 is an evil number, because the sum of its binary digits is even.

The product of its digits is 53760, while the sum is 40.

The square root of 8315887 is about 2883.7279691399. The cubic root of 8315887 is about 202.5984848386.

The spelling of 8315887 in words is "eight million, three hundred fifteen thousand, eight hundred eighty-seven".