3321628 has 12 divisors (see below), whose sum is σ = 5825680. Its totient is φ = 1657152.

The previous prime is 3321623. The next prime is 3321629. The reversal of 3321628 is 8261233.

It is a super-2 number, since 2×3321628² = 22066425140768, which contains 22 as substring.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3321623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2788 + ... + 3796.

Almost surely, 2^3321628 is an apocalyptic number.

It is an amenable number.

3321628 is a deficient number, since it is larger than the sum of its proper divisors (2504052).

3321628 is a wasteful number, since it uses less digits than its factorization.

3321628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1836 (or 1834 counting only the distinct ones).

The product of its digits is 1728, while the sum is 25.

The square root of 3321628 is about 1822.5334016144. The cubic root of 3321628 is about 149.2050986908.

The spelling of 3321628 in words is "three million, three hundred twenty-one thousand, six hundred twenty-eight".