6288221 has 8 divisors (see below), whose sum is σ = 6669600. Its totient is φ = 5911920.

The previous prime is 6288209. The next prime is 6288229. The reversal of 6288221 is 1228826.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6288221 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6288229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1451 + ... + 3831.

It is an arithmetic number, because the mean of its divisors is an integer number (833700).

Almost surely, 2^6288221 is an apocalyptic number.

It is an amenable number.

6288221 is a deficient number, since it is larger than the sum of its proper divisors (381379).

6288221 is a wasteful number, since it uses less digits than its factorization.

6288221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2539.

The product of its digits is 3072, while the sum is 29.

The square root of 6288221 is about 2507.6325488396. The cubic root of 6288221 is about 184.5762984250.

The spelling of 6288221 in words is "six million, two hundred eighty-eight thousand, two hundred twenty-one".