6287220 has 60 divisors (see below), whose sum is σ = 19728324. Its totient is φ = 1676160.

The previous prime is 6287201. The next prime is 6287243. The reversal of 6287220 is 227826.

6287220 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 3111696 + 3175524 = 1764^2 + 1782^2 .

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

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 19 ways as a sum of consecutive naturals, for example, 321 + ... + 3560.

Almost surely, 2^6287220 is an apocalyptic number.

6287220 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6287220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9864162).

6287220 is an abundant number, since it is smaller than the sum of its proper divisors (13441104).

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

6287220 is a wasteful number, since it uses less digits than its factorization.

6287220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3902 (or 3891 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 6287220 is about 2507.4329502501. The cubic root of 6287220 is about 184.5665038859.

The spelling of 6287220 in words is "six million, two hundred eighty-seven thousand, two hundred twenty".