3283981 has 2 divisors, whose sum is σ = 3283982. Its totient is φ = 3283980.

The previous prime is 3283967. The next prime is 3283991. The reversal of 3283981 is 1893823.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2223081 + 1060900 = 1491^2 + 1030^2 .

It is an emirp because it is prime and its reverse (1893823) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3283981 - 2⁷ = 3283853 is a prime.

It is a super-2 number, since 2×3283981² = 21569062416722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3283901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1641990 + 1641991.

It is an arithmetic number, because the mean of its divisors is an integer number (1641991).

Almost surely, 2^3283981 is an apocalyptic number.

It is an amenable number.

3283981 is a deficient number, since it is larger than the sum of its proper divisors (1).

3283981 is an equidigital number, since it uses as much as digits as its factorization.

3283981 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10368, while the sum is 34.

The square root of 3283981 is about 1812.1757641024. The cubic root of 3283981 is about 148.6392636746.

The spelling of 3283981 in words is "three million, two hundred eighty-three thousand, nine hundred eighty-one".