3443989 has 2 divisors, whose sum is σ = 3443990. Its totient is φ = 3443988.

The previous prime is 3443987. The next prime is 3444017. The reversal of 3443989 is 9893443.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3359889 + 84100 = 1833^2 + 290^2 .

It is a cyclic number.

It is not a de Polignac number, because 3443989 - 2¹ = 3443987 is a prime.

It is a super-2 number, since 2×3443989² = 23722120464242, which contains 22 as substring.

Together with 3443987, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3443983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1721994 + 1721995.

It is an arithmetic number, because the mean of its divisors is an integer number (1721995).

Almost surely, 2^3443989 is an apocalyptic number.

It is an amenable number.

3443989 is a deficient number, since it is larger than the sum of its proper divisors (1).

3443989 is an equidigital number, since it uses as much as digits as its factorization.

3443989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 93312, while the sum is 40.

The square root of 3443989 is about 1855.7987498649. The cubic root of 3443989 is about 151.0151732483.

The spelling of 3443989 in words is "three million, four hundred forty-three thousand, nine hundred eighty-nine".