4197968647 has 2 divisors, whose sum is σ = 4197968648. Its totient is φ = 4197968646.

The previous prime is 4197968609. The next prime is 4197968707. The reversal of 4197968647 is 7468697914.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4197968647 - 2⁷ = 4197968519 is a prime.

It is a super-2 number, since 2×4197968647² = 35245881522390021218, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4197962647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2098984323 + 2098984324.

It is an arithmetic number, because the mean of its divisors is an integer number (2098984324).

Almost surely, 2^4197968647 is an apocalyptic number.

4197968647 is a deficient number, since it is larger than the sum of its proper divisors (1).

4197968647 is an equidigital number, since it uses as much as digits as its factorization.

4197968647 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18289152, while the sum is 61.

The square root of 4197968647 is about 64791.7328599876. The cubic root of 4197968647 is about 1613.1684895446.

The spelling of 4197968647 in words is "four billion, one hundred ninety-seven million, nine hundred sixty-eight thousand, six hundred forty-seven".