4197913 has 2 divisors, whose sum is σ = 4197914. Its totient is φ = 4197912.

The previous prime is 4197887. The next prime is 4197923. The reversal of 4197913 is 3197914.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4048144 + 149769 = 2012^2 + 387^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4197913 is a prime.

It is not a weakly prime, because it can be changed into another prime (4197923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2098956 + 2098957.

It is an arithmetic number, because the mean of its divisors is an integer number (2098957).

Almost surely, 2^4197913 is an apocalyptic number.

It is an amenable number.

4197913 is a deficient number, since it is larger than the sum of its proper divisors (1).

4197913 is an equidigital number, since it uses as much as digits as its factorization.

4197913 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6804, while the sum is 34.

The square root of 4197913 is about 2048.8809140602. The cubic root of 4197913 is about 161.3161361622.

Subtracting from 4197913 its reverse (3197914), we obtain a palindrome (999999).

The spelling of 4197913 in words is "four million, one hundred ninety-seven thousand, nine hundred thirteen".