3321709 has 2 divisors, whose sum is σ = 3321710. Its totient is φ = 3321708.

The previous prime is 3321679. The next prime is 3321733. The reversal of 3321709 is 9071233.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3319684 + 2025 = 1822^2 + 45^2 .

It is an emirp because it is prime and its reverse (9071233) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3321709 - 2⁵ = 3321677 is a prime.

It is a super-2 number, since 2×3321709² = 22067501361362, which contains 22 as substring.

3321709 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3321739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1660854 + 1660855.

It is an arithmetic number, because the mean of its divisors is an integer number (1660855).

Almost surely, 2^3321709 is an apocalyptic number.

It is an amenable number.

3321709 is a deficient number, since it is larger than the sum of its proper divisors (1).

3321709 is an equidigital number, since it uses as much as digits as its factorization.

3321709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1134, while the sum is 25.

The square root of 3321709 is about 1822.5556232938. Note that the first 3 decimals coincide. The cubic root of 3321709 is about 149.2063115012.

The spelling of 3321709 in words is "three million, three hundred twenty-one thousand, seven hundred nine".