6881628 has 48 divisors (see below), whose sum is σ = 17862656. Its totient is φ = 2047680.

The previous prime is 6881603. The next prime is 6881639. The reversal of 6881628 is 8261886.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4125 + ... + 5547.

Almost surely, 2^6881628 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6881628, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8931328).

6881628 is an abundant number, since it is smaller than the sum of its proper divisors (10981028).

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

6881628 is a wasteful number, since it uses less digits than its factorization.

6881628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1474 (or 1472 counting only the distinct ones).

The product of its digits is 36864, while the sum is 39.

The square root of 6881628 is about 2623.2857259551. The cubic root of 6881628 is about 190.2087087911.

The spelling of 6881628 in words is "six million, eight hundred eighty-one thousand, six hundred twenty-eight".