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BaseRepresentation
bin10101011101001111
311110120002
4111131033
510303022
61514515
7514142
oct253517
9143502
1087887
1160038
1242a3b
1331007
1424059
151b092
hex1574f

87887 has 2 divisors, whose sum is σ = 87888. Its totient is φ = 87886.

The previous prime is 87881. The next prime is 87911. The reversal of 87887 is 78878.

Subtracting from 87887 its reverse (78878), we obtain a palindrome (9009).

It can be divided in two parts, 8788 and 7, that multiplied together give a palindrome (61516).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 87887 - 28 = 87631 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 87887.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 87887.

It is not a weakly prime, because it can be changed into another prime (87881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43943 + 43944.

It is an arithmetic number, because the mean of its divisors is an integer number (43944).

287887 is an apocalyptic number.

87887 is a deficient number, since it is larger than the sum of its proper divisors (1).

87887 is an equidigital number, since it uses as much as digits as its factorization.

87887 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25088, while the sum is 38.

The square root of 87887 is about 296.4574168409. The cubic root of 87887 is about 44.4605550390.

The spelling of 87887 in words is "eighty-seven thousand, eight hundred eighty-seven".