87893 has 4 divisors (see below), whose sum is σ = 94668. Its totient is φ = 81120.

The previous prime is 87887. The next prime is 87911. The reversal of 87893 is 39878.

87893 is nontrivially palindromic in base 4.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 40804 + 47089 = 202^2 + 217^2 .

It is not a de Polignac number, because 87893 - 2⁴ = 87877 is a prime.

It is a Duffinian number.

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 87893.

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 3 ways as a sum of consecutive naturals, for example, 3368 + ... + 3393.

It is an arithmetic number, because the mean of its divisors is an integer number (23667).

2⁸⁷⁸⁹³ is an apocalyptic number.

It is an amenable number.

87893 is a deficient number, since it is larger than the sum of its proper divisors (6775).

87893 is a wasteful number, since it uses less digits than its factorization.

87893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6774.

The product of its digits is 12096, while the sum is 35.

The square root of 87893 is about 296.4675361654. The cubic root of 87893 is about 44.4615667824.

The spelling of 87893 in words is "eighty-seven thousand, eight hundred ninety-three".