3330421 has 2 divisors, whose sum is σ = 3330422. Its totient is φ = 3330420.

The previous prime is 3330409. The next prime is 3330427. The reversal of 3330421 is 1240333.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3189796 + 140625 = 1786^2 + 375^2 .

It is an emirp because it is prime and its reverse (1240333) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3330421 - 2⁷ = 3330293 is a prime.

It is a super-2 number, since 2×3330421² = 22183408074482, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3330395 and 3330404.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3330427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1665210 + 1665211.

It is an arithmetic number, because the mean of its divisors is an integer number (1665211).

Almost surely, 2^3330421 is an apocalyptic number.

It is an amenable number.

3330421 is a deficient number, since it is larger than the sum of its proper divisors (1).

3330421 is an equidigital number, since it uses as much as digits as its factorization.

3330421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 3330421 is about 1824.9441087332. The cubic root of 3330421 is about 149.3366410611.

Adding to 3330421 its reverse (1240333), we get a palindrome (4570754).

The spelling of 3330421 in words is "three million, three hundred thirty thousand, four hundred twenty-one".