Search a number
BaseRepresentation
bin10001010110111
3110012011
42022313
5241022
6105051
734624
oct21267
913164
108887
11674a
125187
134078
14334b
152977
hex22b7

8887 has 2 divisors, whose sum is σ = 8888. Its totient is φ = 8886.

The previous prime is 8867. The next prime is 8893. The reversal of 8887 is 7888.

Subtracting from 8887 its reverse (7888), we obtain a palindrome (999).

It can be divided in two parts, 888 and 7, that multiplied together give a triangular number (6216 = T111).

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-8887 is a prime.

It is a Chen prime.

It is a plaindrome in base 14.

It is a nialpdrome in base 10.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4443 + 4444.

It is an arithmetic number, because the mean of its divisors is an integer number (4444).

28887 is an apocalyptic number.

8887 is a deficient number, since it is larger than the sum of its proper divisors (1).

8887 is an equidigital number, since it uses as much as digits as its factorization.

8887 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3584, while the sum is 31.

The square root of 8887 is about 94.2708862799. The cubic root of 8887 is about 20.7134159648.

The spelling of 8887 in words is "eight thousand, eight hundred eighty-seven".