3351421 has 2 divisors, whose sum is σ = 3351422. Its totient is φ = 3351420.

The previous prime is 3351419. The next prime is 3351427. The reversal of 3351421 is 1241533.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3115225 + 236196 = 1765^2 + 486^2 .

It is a cyclic number.

It is not a de Polignac number, because 3351421 - 2¹ = 3351419 is a prime.

It is a super-2 number, since 2×3351421² = 22464045438482, which contains 22 as substring.

Together with 3351419, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3351427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1675710 + 1675711.

It is an arithmetic number, because the mean of its divisors is an integer number (1675711).

Almost surely, 2^3351421 is an apocalyptic number.

It is an amenable number.

3351421 is a deficient number, since it is larger than the sum of its proper divisors (1).

3351421 is an equidigital number, since it uses as much as digits as its factorization.

3351421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 360, while the sum is 19.

The square root of 3351421 is about 1830.6886682339. The cubic root of 3351421 is about 149.6498648198.

Adding to 3351421 its reverse (1241533), we get a palindrome (4592954).

The spelling of 3351421 in words is "three million, three hundred fifty-one thousand, four hundred twenty-one".