84087 has 6 divisors (see below), whose sum is σ = 121472. Its totient is φ = 56052.

The previous prime is 84067. The next prime is 84089. The reversal of 84087 is 78048.

It is a happy number.

It is not a de Polignac number, because 84087 - 2¹⁰ = 83063 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 84087.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84089) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4663 + ... + 4680.

2⁸⁴⁰⁸⁷ is an apocalyptic number.

84087 is a deficient number, since it is larger than the sum of its proper divisors (37385).

84087 is a wasteful number, since it uses less digits than its factorization.

84087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9349 (or 9346 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 27.

The square root of 84087 is about 289.9775853407. The cubic root of 84087 is about 43.8103059504.

It can be divided in two parts, 8 and 4087, that added together give a triangular number (4095 = T₉₀).

The spelling of 84087 in words is "eighty-four thousand, eighty-seven".