16860 has 24 divisors (see below), whose sum is σ = 47376. Its totient is φ = 4480.

The previous prime is 16843. The next prime is 16871. The reversal of 16860 is 6861.

16860 = T₅₃ + T₅₄ + ... + T₆₂.

It is a hoax number, since the sum of its digits (21) coincides with the sum of the digits of its distinct prime factors.

It is a plaindrome in base 13.

It is a nialpdrome in base 12.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 81 + ... + 200.

It is an arithmetic number, because the mean of its divisors is an integer number (1974).

2¹⁶⁸⁶⁰ is an apocalyptic number.

16860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16860 is an abundant number, since it is smaller than the sum of its proper divisors (30516).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23688).

16860 is a wasteful number, since it uses less digits than its factorization.

16860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293 (or 291 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 16860 is about 129.8460627050. The cubic root of 16860 is about 25.6420370541.

Subtracting from 16860 its reverse (6861), we obtain a palindrome (9999).

The spelling of 16860 in words is "sixteen thousand, eight hundred sixty".