6991036 has 12 divisors (see below), whose sum is σ = 13175512. Its totient is φ = 3226608.

The previous prime is 6991013. The next prime is 6991043. The reversal of 6991036 is 6301996.

It is a junction number, because it is equal to n+sod(n) for n = 6990992 and 6991010.

It is a congruent number.

It is an unprimeable number.

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, 67170 + ... + 67273.

Almost surely, 2^6991036 is an apocalyptic number.

It is an amenable number.

6991036 is a deficient number, since it is larger than the sum of its proper divisors (6184476).

6991036 is a wasteful number, since it uses less digits than its factorization.

6991036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134460 (or 134458 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 34.

The square root of 6991036 is about 2644.0567316153. The cubic root of 6991036 is about 191.2114285636.

The spelling of 6991036 in words is "six million, nine hundred ninety-one thousand, thirty-six".