6998816 has 48 divisors (see below), whose sum is σ = 15331680. Its totient is φ = 3118080.

The previous prime is 6998779. The next prime is 6998833. The reversal of 6998816 is 6188996.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20600 + ... + 20936.

It is an arithmetic number, because the mean of its divisors is an integer number (319410).

Almost surely, 2^6998816 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 6998816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7665840).

6998816 is an abundant number, since it is smaller than the sum of its proper divisors (8332864).

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

6998816 is a wasteful number, since it uses less digits than its factorization.

6998816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417 (or 409 counting only the distinct ones).

The product of its digits is 186624, while the sum is 47.

The square root of 6998816 is about 2645.5275466341. The cubic root of 6998816 is about 191.2823323809.

The spelling of 6998816 in words is "six million, nine hundred ninety-eight thousand, eight hundred sixteen".