3301681 has 2 divisors, whose sum is σ = 3301682. Its totient is φ = 3301680.

The previous prime is 3301663. The next prime is 3301709. The reversal of 3301681 is 1861033.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3182656 + 119025 = 1784^2 + 345^2 .

It is an emirp because it is prime and its reverse (1861033) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3301681 - 2⁹ = 3301169 is a prime.

It is a super-2 number, since 2×3301681² = 21802194851522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3301601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1650840 + 1650841.

It is an arithmetic number, because the mean of its divisors is an integer number (1650841).

Almost surely, 2^3301681 is an apocalyptic number.

It is an amenable number.

3301681 is a deficient number, since it is larger than the sum of its proper divisors (1).

3301681 is an equidigital number, since it uses as much as digits as its factorization.

3301681 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 3301681 is about 1817.0528335742. The cubic root of 3301681 is about 148.9058306217.

The spelling of 3301681 in words is "three million, three hundred one thousand, six hundred eighty-one".