3430021897 has 2 divisors, whose sum is σ = 3430021898. Its totient is φ = 3430021896.

The previous prime is 3430021891. The next prime is 3430021937. The reversal of 3430021897 is 7981200343.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3253105296 + 176916601 = 57036^2 + 13301^2 .

It is a cyclic number.

It is not a de Polignac number, because 3430021897 - 2¹¹ = 3430019849 is a prime.

It is not a weakly prime, because it can be changed into another prime (3430021891) 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, 1715010948 + 1715010949.

It is an arithmetic number, because the mean of its divisors is an integer number (1715010949).

Almost surely, 2^3430021897 is an apocalyptic number.

It is an amenable number.

3430021897 is a deficient number, since it is larger than the sum of its proper divisors (1).

3430021897 is an equidigital number, since it uses as much as digits as its factorization.

3430021897 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 3430021897 is about 58566.3887993788. The cubic root of 3430021897 is about 1508.1074922438.

The spelling of 3430021897 in words is "three billion, four hundred thirty million, twenty-one thousand, eight hundred ninety-seven".