6990984 has 192 divisors, whose sum is σ = 25683840. Its totient is φ = 1658880.

The previous prime is 6990967. The next prime is 6991003. The reversal of 6990984 is 4890996.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 72024 + ... + 72120.

It is an arithmetic number, because the mean of its divisors is an integer number (133770).

Almost surely, 2^6990984 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 6990984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12841920).

6990984 is an abundant number, since it is smaller than the sum of its proper divisors (18692856).

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

6990984 is a wasteful number, since it uses less digits than its factorization.

6990984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140 (or 133 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 45.

The square root of 6990984 is about 2644.0468982225. The cubic root of 6990984 is about 191.2109544794.

The spelling of 6990984 in words is "six million, nine hundred ninety thousand, nine hundred eighty-four".