3421309889 has 2 divisors, whose sum is σ = 3421309890. Its totient is φ = 3421309888.

The previous prime is 3421309861. The next prime is 3421309897. The reversal of 3421309889 is 9889031243.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3419910400 + 1399489 = 58480^2 + 1183^2 .

It is a cyclic number.

It is not a de Polignac number, because 3421309889 - 2²⁴ = 3404532673 is a prime.

It is a super-2 number, since 2×3421309889² = 23410722713138384642, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (3421300889) 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, 1710654944 + 1710654945.

It is an arithmetic number, because the mean of its divisors is an integer number (1710654945).

Almost surely, 2^3421309889 is an apocalyptic number.

It is an amenable number.

3421309889 is a deficient number, since it is larger than the sum of its proper divisors (1).

3421309889 is an equidigital number, since it uses as much as digits as its factorization.

3421309889 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 373248, while the sum is 47.

The square root of 3421309889 is about 58491.9643113479. The cubic root of 3421309889 is about 1506.8295816462.

The spelling of 3421309889 in words is "three billion, four hundred twenty-one million, three hundred nine thousand, eight hundred eighty-nine".