67885 has 4 divisors (see below), whose sum is σ = 81468. Its totient is φ = 54304.

The previous prime is 67883. The next prime is 67891. The reversal of 67885 is 58876.

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 48841 + 19044 = 221^2 + 138^2 .

It is a cyclic number.

It is not a de Polignac number, because 67885 - 2¹ = 67883 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 67885.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6784 + ... + 6793.

It is an arithmetic number, because the mean of its divisors is an integer number (20367).

2⁶⁷⁸⁸⁵ is an apocalyptic number.

It is an amenable number.

67885 is a deficient number, since it is larger than the sum of its proper divisors (13583).

67885 is a wasteful number, since it uses less digits than its factorization.

67885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13582.

The product of its digits is 13440, while the sum is 34.

The square root of 67885 is about 260.5475004678. The cubic root of 67885 is about 40.7935287058.

Subtracting from 67885 its product of digits (13440), we obtain a palindrome (54445).

Subtracting from 67885 its reverse (58876), we obtain a palindrome (9009).

It can be divided in two parts, 678 and 85, that multiplied together give a triangular number (57630 = T₃₃₉).

The spelling of 67885 in words is "sixty-seven thousand, eight hundred eighty-five".