6988820 has 24 divisors (see below), whose sum is σ = 14751744. Its totient is φ = 2781216.

The previous prime is 6988811. The next prime is 6988829. The reversal of 6988820 is 288896.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (6988811) and next prime (6988829).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6988829) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3677 + ... + 5243.

It is an arithmetic number, because the mean of its divisors is an integer number (614656).

Almost surely, 2^6988820 is an apocalyptic number.

It is an amenable number.

6988820 is an abundant number, since it is smaller than the sum of its proper divisors (7762924).

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

6988820 is a wasteful number, since it uses less digits than its factorization.

6988820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1799 (or 1797 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 41.

The square root of 6988820 is about 2643.6376453667. The cubic root of 6988820 is about 191.1912231985.

The spelling of 6988820 in words is "six million, nine hundred eighty-eight thousand, eight hundred twenty".