6999828 has 48 divisors (see below), whose sum is σ = 18762240. Its totient is φ = 2008800.

The previous prime is 6999823. The next prime is 6999829. The reversal of 6999828 is 8289996.

6999828 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6999821) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1113 + ... + 3903.

It is an arithmetic number, because the mean of its divisors is an integer number (390880).

Almost surely, 2^6999828 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 6999828, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9381120).

6999828 is an abundant number, since it is smaller than the sum of its proper divisors (11762412).

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

6999828 is a wasteful number, since it uses less digits than its factorization.

6999828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2828 (or 2826 counting only the distinct ones).

The product of its digits is 559872, while the sum is 51.

The square root of 6999828 is about 2645.7188059202. The cubic root of 6999828 is about 191.2915514827.

The spelling of 6999828 in words is "six million, nine hundred ninety-nine thousand, eight hundred twenty-eight".