7991296 has 26 divisors (see below), whose sum is σ = 15988832. Its totient is φ = 3993600.

The previous prime is 7991257. The next prime is 7991303. The reversal of 7991296 is 6921997.

It is an Ulam number.

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3121 + ... + 5071.

Almost surely, 2^7991296 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 7991296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7994416).

7991296 is an abundant number, since it is smaller than the sum of its proper divisors (7997536).

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

7991296 is an equidigital number, since it uses as much as digits as its factorization.

7991296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1975 (or 1953 counting only the distinct ones).

The product of its digits is 61236, while the sum is 43.

The square root of 7991296 is about 2826.8880416458. Note that the first 3 decimals coincide. The cubic root of 7991296 is about 199.9274403453.

It can be divided in two parts, 79912 and 96, that added together give a palindrome (80008).

The spelling of 7991296 in words is "seven million, nine hundred ninety-one thousand, two hundred ninety-six".