7847262847 has 2 divisors, whose sum is σ = 7847262848. Its totient is φ = 7847262846.

The previous prime is 7847262821. The next prime is 7847262851. The reversal of 7847262847 is 7482627487.

It is a strong prime.

It is an emirp because it is prime and its reverse (7482627487) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7847262847 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7847262347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3923631423 + 3923631424.

It is an arithmetic number, because the mean of its divisors is an integer number (3923631424).

Almost surely, 2^7847262847 is an apocalyptic number.

7847262847 is a deficient number, since it is larger than the sum of its proper divisors (1).

7847262847 is an equidigital number, since it uses as much as digits as its factorization.

7847262847 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8429568, while the sum is 55.

The square root of 7847262847 is about 88584.7777386160. Note that the first 4 decimals coincide. The cubic root of 7847262847 is about 1987.1900314407.

The spelling of 7847262847 in words is "seven billion, eight hundred forty-seven million, two hundred sixty-two thousand, eight hundred forty-seven".