7991056 has 20 divisors (see below), whose sum is σ = 15983104. Its totient is φ = 3866400.

The previous prime is 7991047. The next prime is 7991057. The reversal of 7991056 is 6501997.

7991056 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (7991057) 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, 7560 + ... + 8551.

Almost surely, 2^7991056 is an apocalyptic number.

It is an amenable number.

7991056 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

7991056 is a wasteful number, since it uses less digits than its factorization.

7991056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16150 (or 16144 counting only the distinct ones).

The product of its (nonzero) digits is 17010, while the sum is 37.

The square root of 7991056 is about 2826.8455918214. The cubic root of 7991056 is about 199.9254388733.

The spelling of 7991056 in words is "seven million, nine hundred ninety-one thousand, fifty-six".