7991344 has 10 divisors (see below), whose sum is σ = 15483260. Its totient is φ = 3995664.

The previous prime is 7991341. The next prime is 7991369. The reversal of 7991344 is 4431997.

7991344 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (7991341) by changing a digit.

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 as a sum of consecutive naturals, namely, 249714 + ... + 249745.

It is an arithmetic number, because the mean of its divisors is an integer number (1548326).

Almost surely, 2^7991344 is an apocalyptic number.

It is an amenable number.

7991344 is a deficient number, since it is larger than the sum of its proper divisors (7491916).

7991344 is a wasteful number, since it uses less digits than its factorization.

7991344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 499467 (or 499461 counting only the distinct ones).

The product of its digits is 27216, while the sum is 37.

The square root of 7991344 is about 2826.8965315342. The cubic root of 7991344 is about 199.9278406349.

The spelling of 7991344 in words is "seven million, nine hundred ninety-one thousand, three hundred forty-four".