3390689 has 2 divisors, whose sum is σ = 3390690. Its totient is φ = 3390688.

The previous prime is 3390661. The next prime is 3390691. The reversal of 3390689 is 9860933.

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., 3179089 + 211600 = 1783^2 + 460^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3390689 is a prime.

It is a super-2 number, since 2×3390689² = 22993543789442, which contains 22 as substring.

Together with 3390691, it forms a pair of twin primes.

It is a Chen prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (3390619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1695344 + 1695345.

It is an arithmetic number, because the mean of its divisors is an integer number (1695345).

Almost surely, 2^3390689 is an apocalyptic number.

It is an amenable number.

3390689 is a deficient number, since it is larger than the sum of its proper divisors (1).

3390689 is an equidigital number, since it uses as much as digits as its factorization.

3390689 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34992, while the sum is 38.

The square root of 3390689 is about 1841.3823611624. The cubic root of 3390689 is about 150.2320704000.

The spelling of 3390689 in words is "three million, three hundred ninety thousand, six hundred eighty-nine".