87843 has 16 divisors (see below), whose sum is σ = 138240. Its totient is φ = 48576.

The previous prime is 87833. The next prime is 87853. The reversal of 87843 is 34878.

It is an interprime number because it is at equal distance from previous prime (87833) and next prime (87853).

It is not a de Polignac number, because 87843 - 2⁵ = 87811 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 87843.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87803) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 943 + ... + 1031.

It is an arithmetic number, because the mean of its divisors is an integer number (8640).

2⁸⁷⁸⁴³ is an apocalyptic number.

87843 is a deficient number, since it is larger than the sum of its proper divisors (50397).

87843 is a wasteful number, since it uses less digits than its factorization.

87843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146.

The product of its digits is 5376, while the sum is 30.

The square root of 87843 is about 296.3831979043. The cubic root of 87843 is about 44.4531341805.

The spelling of 87843 in words is "eighty-seven thousand, eight hundred forty-three".