434791897 has 2 divisors, whose sum is σ = 434791898. Its totient is φ = 434791896.

The previous prime is 434791871. The next prime is 434791909. The reversal of 434791897 is 798197434.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 417017241 + 17774656 = 20421^2 + 4216^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-434791897 is a prime.

It is not a weakly prime, because it can be changed into another prime (434791837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 217395948 + 217395949.

It is an arithmetic number, because the mean of its divisors is an integer number (217395949).

Almost surely, 2^434791897 is an apocalyptic number.

It is an amenable number.

434791897 is a deficient number, since it is larger than the sum of its proper divisors (1).

434791897 is an equidigital number, since it uses as much as digits as its factorization.

434791897 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1524096, while the sum is 52.

The square root of 434791897 is about 20851.6641302319. The cubic root of 434791897 is about 757.5776388234.

The spelling of 434791897 in words is "four hundred thirty-four million, seven hundred ninety-one thousand, eight hundred ninety-seven".