6990824 has 16 divisors (see below), whose sum is σ = 13229700. Its totient is φ = 3462912.

The previous prime is 6990821. The next prime is 6990829. The reversal of 6990824 is 4280996.

It can be written as a sum of positive squares in 2 ways, for example, as 6853924 + 136900 = 2618^2 + 370^2 .

It is not an unprimeable number, because it can be changed into a prime (6990821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3137 + ... + 4880.

Almost surely, 2^6990824 is an apocalyptic number.

It is an amenable number.

6990824 is a deficient number, since it is larger than the sum of its proper divisors (6238876).

6990824 is a wasteful number, since it uses less digits than its factorization.

6990824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8132 (or 8128 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 6990824 is about 2644.0166414000. The cubic root of 6990824 is about 191.2094957440.

The spelling of 6990824 in words is "six million, nine hundred ninety thousand, eight hundred twenty-four".