3268621 has 2 divisors, whose sum is σ = 3268622. Its totient is φ = 3268620.

The previous prime is 3268591. The next prime is 3268649. The reversal of 3268621 is 1268623.

It is an a-pointer prime, because the next prime (3268649) can be obtained adding 3268621 to its sum of digits (28).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2722500 + 546121 = 1650^2 + 739^2 .

It is an emirp because it is prime and its reverse (1268623) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3268621 - 2⁷ = 3268493 is a prime.

It is a super-4 number, since 4×3268621⁴ (a number of 27 digits) contains 4444 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3268621.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3268651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1634310 + 1634311.

It is an arithmetic number, because the mean of its divisors is an integer number (1634311).

Almost surely, 2^3268621 is an apocalyptic number.

It is an amenable number.

3268621 is a deficient number, since it is larger than the sum of its proper divisors (1).

3268621 is an equidigital number, since it uses as much as digits as its factorization.

3268621 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3456, while the sum is 28.

The square root of 3268621 is about 1807.9327974236. The cubic root of 3268621 is about 148.4071604327.

The spelling of 3268621 in words is "three million, two hundred sixty-eight thousand, six hundred twenty-one".