6991248 has 40 divisors (see below), whose sum is σ = 19704096. Its totient is φ = 2118400.

The previous prime is 6991147. The next prime is 6991253. The reversal of 6991248 is 8421996.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6093 + ... + 7148.

Almost surely, 2^6991248 is an apocalyptic number.

It is an amenable number.

6991248 is an abundant number, since it is smaller than the sum of its proper divisors (12712848).

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

6991248 is a wasteful number, since it uses less digits than its factorization.

6991248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13263 (or 13257 counting only the distinct ones).

The product of its digits is 31104, while the sum is 39.

The square root of 6991248 is about 2644.0968212227. The cubic root of 6991248 is about 191.2133613440.

The spelling of 6991248 in words is "six million, nine hundred ninety-one thousand, two hundred forty-eight".