7647996443 has 2 divisors, whose sum is σ = 7647996444. Its totient is φ = 7647996442.

The previous prime is 7647996439. The next prime is 7647996487. The reversal of 7647996443 is 3446997467.

It is a weak prime.

It is an emirp because it is prime and its reverse (3446997467) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7647996443 - 2² = 7647996439 is a prime.

It is not a weakly prime, because it can be changed into another prime (7647990443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3823998221 + 3823998222.

It is an arithmetic number, because the mean of its divisors is an integer number (3823998222).

Almost surely, 2^7647996443 is an apocalyptic number.

7647996443 is a deficient number, since it is larger than the sum of its proper divisors (1).

7647996443 is an equidigital number, since it uses as much as digits as its factorization.

7647996443 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27433728, while the sum is 59.

The square root of 7647996443 is about 87452.8240996253. The cubic root of 7647996443 is about 1970.2253036655.

The spelling of 7647996443 in words is "seven billion, six hundred forty-seven million, nine hundred ninety-six thousand, four hundred forty-three".