6887220 has 48 divisors (see below), whose sum is σ = 19541760. Its totient is φ = 1812096.

The previous prime is 6887219. The next prime is 6887249. The reversal of 6887220 is 227886.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4014 + ... + 5466.

It is an arithmetic number, because the mean of its divisors is an integer number (407120).

Almost surely, 2^6887220 is an apocalyptic number.

6887220 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 6887220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9770880).

6887220 is an abundant number, since it is smaller than the sum of its proper divisors (12654540).

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

6887220 is a wasteful number, since it uses less digits than its factorization.

6887220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1544 (or 1542 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 33.

The square root of 6887220 is about 2624.3513484288. The cubic root of 6887220 is about 190.2602159404.

The spelling of 6887220 in words is "six million, eight hundred eighty-seven thousand, two hundred twenty".