67889 has 4 divisors (see below), whose sum is σ = 70260. Its totient is φ = 65520.

The previous prime is 67883. The next prime is 67891. The reversal of 67889 is 98876.

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 40000 + 27889 = 200^2 + 167^2 .

It is a cyclic number.

It is not a de Polignac number, because 67889 - 2¹² = 63793 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10 and base 12.

It is a zygodrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (67883) 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, 1142 + ... + 1199.

It is an arithmetic number, because the mean of its divisors is an integer number (17565).

2⁶⁷⁸⁸⁹ is an apocalyptic number.

It is an amenable number.

67889 is a deficient number, since it is larger than the sum of its proper divisors (2371).

67889 is a wasteful number, since it uses less digits than its factorization.

67889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2370.

The product of its digits is 24192, while the sum is 38.

The square root of 67889 is about 260.5551764982. Note that the first 3 decimals coincide. The cubic root of 67889 is about 40.7943299182.

It can be divided in two parts, 678 and 89, that added together give a palindrome (767).

The spelling of 67889 in words is "sixty-seven thousand, eight hundred eighty-nine".