3321629 has 2 divisors, whose sum is σ = 3321630. Its totient is φ = 3321628.

The previous prime is 3321623. The next prime is 3321653. The reversal of 3321629 is 9261233.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2325625 + 996004 = 1525^2 + 998^2 .

It is an emirp because it is prime and its reverse (9261233) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3321629 - 2¹⁶ = 3256093 is a prime.

It is a super-2 number, since 2×3321629² = 22066438427282, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3321598 and 3321607.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3321623) 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, 1660814 + 1660815.

It is an arithmetic number, because the mean of its divisors is an integer number (1660815).

Almost surely, 2^3321629 is an apocalyptic number.

It is an amenable number.

3321629 is a deficient number, since it is larger than the sum of its proper divisors (1).

3321629 is an equidigital number, since it uses as much as digits as its factorization.

3321629 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1944, while the sum is 26.

The square root of 3321629 is about 1822.5336759577. The cubic root of 3321629 is about 149.2051136639.

The spelling of 3321629 in words is "three million, three hundred twenty-one thousand, six hundred twenty-nine".