3361661 has 2 divisors, whose sum is σ = 3361662. Its totient is φ = 3361660.

The previous prime is 3361639. The next prime is 3361667. The reversal of 3361661 is 1661633.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3308761 + 52900 = 1819^2 + 230^2 .

It is a cyclic number.

It is not a de Polignac number, because 3361661 - 2¹⁸ = 3099517 is a prime.

It is a super-2 number, since 2×3361661² = 22601529357842, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 3361661.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3361667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1680830 + 1680831.

It is an arithmetic number, because the mean of its divisors is an integer number (1680831).

Almost surely, 2^3361661 is an apocalyptic number.

It is an amenable number.

3361661 is a deficient number, since it is larger than the sum of its proper divisors (1).

3361661 is an equidigital number, since it uses as much as digits as its factorization.

3361661 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1944, while the sum is 26.

The square root of 3361661 is about 1833.4832968969. The cubic root of 3361661 is about 149.8021242679.

It can be divided in two parts, 336 and 1661, that multiplied together give a triangular number (558096 = T₁₀₅₆).

The spelling of 3361661 in words is "three million, three hundred sixty-one thousand, six hundred sixty-one".