3347989 has 2 divisors, whose sum is σ = 3347990. Its totient is φ = 3347988.

The previous prime is 3347987. The next prime is 3348001. The reversal of 3347989 is 9897433.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2377764 + 970225 = 1542^2 + 985^2 .

It is a cyclic number.

It is not a de Polignac number, because 3347989 - 2¹ = 3347987 is a prime.

It is a super-2 number, since 2×3347989² = 22418060688242, which contains 22 as substring.

Together with 3347987, it forms a pair of twin primes.

3347989 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3347983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1673994 + 1673995.

It is an arithmetic number, because the mean of its divisors is an integer number (1673995).

Almost surely, 2^3347989 is an apocalyptic number.

It is an amenable number.

3347989 is a deficient number, since it is larger than the sum of its proper divisors (1).

3347989 is an equidigital number, since it uses as much as digits as its factorization.

3347989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 163296, while the sum is 43.

The square root of 3347989 is about 1829.7510759663. The cubic root of 3347989 is about 149.5987647290.

The spelling of 3347989 in words is "three million, three hundred forty-seven thousand, nine hundred eighty-nine".