6021 has 8 divisors (see below), whose sum is σ = 8960.
Its totient is φ = 3996.
The previous prime is 6011. The next prime is 6029. The reversal of 6021 is 1206.
It is a de Polignac number, because none of the positive numbers 2k-6021 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (9).
It is a Duffinian number.
It is a Curzon number.
It is a plaindrome in base 12.
It is a junction number, because it is equal to n+sod(n) for n = 5994 and 6012.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (6029) 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 7 ways as a sum of consecutive naturals, for example, 85 + ... + 138.
It is an arithmetic number, because the mean of its divisors is an integer number (1120).
It is an amenable number.
6021 is a deficient number, since it is larger than the sum of its proper divisors (2939).
6021 is a wasteful number, since it uses less digits than its factorization.
6021 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 232 (or 226 counting only the distinct ones).
The product of its (nonzero) digits is 12, while the sum is 9.
The square root of 6021 is about 77.5951029383.
The cubic root of 6021 is about 18.1923809835.
Adding to 6021 its reverse (1206), we get a palindrome (7227).
It can be divided in two parts, 60 and 21, that added together give a 4-th power (81 = 34).
The spelling of 6021 in words is "six thousand, twenty-one".