419743897 has 2 divisors, whose sum is σ = 419743898. Its totient is φ = 419743896.

The previous prime is 419743853. The next prime is 419743901. The reversal of 419743897 is 798347914.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 240746256 + 178997641 = 15516^2 + 13379^2 .

It is a cyclic number.

It is not a de Polignac number, because 419743897 - 2¹⁵ = 419711129 is a prime.

It is not a weakly prime, because it can be changed into another prime (419743097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 209871948 + 209871949.

It is an arithmetic number, because the mean of its divisors is an integer number (209871949).

Almost surely, 2^419743897 is an apocalyptic number.

It is an amenable number.

419743897 is a deficient number, since it is larger than the sum of its proper divisors (1).

419743897 is an equidigital number, since it uses as much as digits as its factorization.

419743897 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 419743897 is about 20487.6523057182. The cubic root of 419743897 is about 748.7349916864.

The spelling of 419743897 in words is "four hundred nineteen million, seven hundred forty-three thousand, eight hundred ninety-seven".