8197951747 has 2 divisors, whose sum is σ = 8197951748. Its totient is φ = 8197951746.

The previous prime is 8197951693. The next prime is 8197951771. The reversal of 8197951747 is 7471597918.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8197951747 - 2¹⁵ = 8197918979 is a prime.

It is a super-2 number, since 2×8197951747² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 8197951691 and 8197951700.

It is not a weakly prime, because it can be changed into another prime (8197051747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4098975873 + 4098975874.

It is an arithmetic number, because the mean of its divisors is an integer number (4098975874).

Almost surely, 2^8197951747 is an apocalyptic number.

8197951747 is a deficient number, since it is larger than the sum of its proper divisors (1).

8197951747 is an equidigital number, since it uses as much as digits as its factorization.

8197951747 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4445280, while the sum is 58.

The square root of 8197951747 is about 90542.5410898104. The cubic root of 8197951747 is about 2016.3617603031.

The spelling of 8197951747 in words is "eight billion, one hundred ninety-seven million, nine hundred fifty-one thousand, seven hundred forty-seven".