3443021 has 2 divisors, whose sum is σ = 3443022. Its totient is φ = 3443020.

The previous prime is 3443017. The next prime is 3443051. The reversal of 3443021 is 1203443.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2464900 + 978121 = 1570^2 + 989^2 .

It is an emirp because it is prime and its reverse (1203443) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3443021 - 2² = 3443017 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3443051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1721510 + 1721511.

It is an arithmetic number, because the mean of its divisors is an integer number (1721511).

Almost surely, 2^3443021 is an apocalyptic number.

It is an amenable number.

3443021 is a deficient number, since it is larger than the sum of its proper divisors (1).

3443021 is an equidigital number, since it uses as much as digits as its factorization.

3443021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 3443021 is about 1855.5379273946. The cubic root of 3443021 is about 151.0010233400.

Adding to 3443021 its reverse (1203443), we get a palindrome (4646464).

The spelling of 3443021 in words is "three million, four hundred forty-three thousand, twenty-one".