3241981 has 2 divisors, whose sum is σ = 3241982. Its totient is φ = 3241980.

The previous prime is 3241969. The next prime is 3242009. The reversal of 3241981 is 1891423.

It is a happy number.

It is an a-pointer prime, because the next prime (3242009) can be obtained adding 3241981 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3006756 + 235225 = 1734^2 + 485^2 .

It is a cyclic number.

It is not a de Polignac number, because 3241981 - 2⁷ = 3241853 is a prime.

It is a super-2 number, since 2×3241981² = 21020881608722, which contains 22 as substring.

It is a Chen prime.

3241981 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3241921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1620990 + 1620991.

It is an arithmetic number, because the mean of its divisors is an integer number (1620991).

Almost surely, 2^3241981 is an apocalyptic number.

It is an amenable number.

3241981 is a deficient number, since it is larger than the sum of its proper divisors (1).

3241981 is an equidigital number, since it uses as much as digits as its factorization.

3241981 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1728, while the sum is 28.

The square root of 3241981 is about 1800.5501936908. The cubic root of 3241981 is about 148.0028761311.

The spelling of 3241981 in words is "three million, two hundred forty-one thousand, nine hundred eighty-one".