87039 has 12 divisors (see below), whose sum is σ = 132600. Its totient is φ = 54864.

The previous prime is 87037. The next prime is 87041. The reversal of 87039 is 93078.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (87037) and next prime (87041).

It is not a de Polignac number, because 87039 - 2¹ = 87037 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

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 87039.

It is not an unprimeable number, because it can be changed into a prime (87037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 84 + ... + 425.

It is an arithmetic number, because the mean of its divisors is an integer number (11050).

2⁸⁷⁰³⁹ is an apocalyptic number.

87039 is a deficient number, since it is larger than the sum of its proper divisors (45561).

87039 is a wasteful number, since it uses less digits than its factorization.

87039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 534 (or 531 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 87039 is about 295.0237278593. The cubic root of 87039 is about 44.3170963335.

It can be divided in two parts, 870 and 39, that multiplied together give a triangular number (33930 = T₂₆₀).

The spelling of 87039 in words is "eighty-seven thousand, thirty-nine".