3226621 has 2 divisors, whose sum is σ = 3226622. Its totient is φ = 3226620.

The previous prime is 3226603. The next prime is 3226631. The reversal of 3226621 is 1266223.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3024121 + 202500 = 1739^2 + 450^2 .

It is a cyclic number.

It is not a de Polignac number, because 3226621 - 2⁷ = 3226493 is a prime.

It is a super-2 number, since 2×3226621² = 20822166155282, which contains 22 as substring.

3226621 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 3226592 and 3226601.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3226631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1613310 + 1613311.

It is an arithmetic number, because the mean of its divisors is an integer number (1613311).

Almost surely, 2^3226621 is an apocalyptic number.

It is an amenable number.

3226621 is a deficient number, since it is larger than the sum of its proper divisors (1).

3226621 is an equidigital number, since it uses as much as digits as its factorization.

3226621 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 864, while the sum is 22.

The square root of 3226621 is about 1796.2797666288. The cubic root of 3226621 is about 147.7687678420.

The spelling of 3226621 in words is "three million, two hundred twenty-six thousand, six hundred twenty-one".