7909534447 has 12 divisors (see below), whose sum is σ = 8071507024. Its totient is φ = 7750753920.

The previous prime is 7909534417. The next prime is 7909534459. The reversal of 7909534447 is 7444359097.

It is a de Polignac number, because none of the positive numbers 2^k-7909534447 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7909534394 and 7909534403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7909534417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3659047 + ... + 3661207.

Almost surely, 2^7909534447 is an apocalyptic number.

7909534447 is a deficient number, since it is larger than the sum of its proper divisors (161972577).

7909534447 is a wasteful number, since it uses less digits than its factorization.

7909534447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3570 (or 3517 counting only the distinct ones).

The product of its (nonzero) digits is 3810240, while the sum is 52.

The square root of 7909534447 is about 88935.5634546721. The cubic root of 7909534447 is about 1992.4326073131.

The spelling of 7909534447 in words is "seven billion, nine hundred nine million, five hundred thirty-four thousand, four hundred forty-seven".