3271661 has 2 divisors, whose sum is σ = 3271662. Its totient is φ = 3271660.

The previous prime is 3271657. The next prime is 3271669. The reversal of 3271661 is 1661723.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1876900 + 1394761 = 1370^2 + 1181^2 .

It is a cyclic number.

It is not a de Polignac number, because 3271661 - 2² = 3271657 is a prime.

It is a super-3 number, since 3×3271661³ (a number of 21 digits) contains 333 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 3271661.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3271669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1635830 + 1635831.

It is an arithmetic number, because the mean of its divisors is an integer number (1635831).

Almost surely, 2^3271661 is an apocalyptic number.

It is an amenable number.

3271661 is a deficient number, since it is larger than the sum of its proper divisors (1).

3271661 is an equidigital number, since it uses as much as digits as its factorization.

3271661 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1512, while the sum is 26.

The square root of 3271661 is about 1808.7733412454. The cubic root of 3271661 is about 148.4531551577.

The spelling of 3271661 in words is "three million, two hundred seventy-one thousand, six hundred sixty-one".