2685 has 8 divisors (see below), whose sum is σ = 4320. Its totient is φ = 1424.

The previous prime is 2683. The next prime is 2687. The reversal of 2685 is 5862.

2685 = T₁₈ + T₁₉ + ... + T₂₇.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2683) and next prime (2687).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2685 - 2¹ = 2683 is a prime.

It is a plaindrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2683) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75 + ... + 104.

It is an arithmetic number, because the mean of its divisors is an integer number (540).

It is an amenable number.

2685 is a deficient number, since it is larger than the sum of its proper divisors (1635).

2685 is a wasteful number, since it uses less digits than its factorization.

2685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187.

The product of its digits is 480, while the sum is 21.

The square root of 2685 is about 51.8169856321. The cubic root of 2685 is about 13.8989319953.

It can be divided in two parts, 26 and 85, that added together give a palindrome (111).

The spelling of 2685 in words is "two thousand, six hundred eighty-five".