3218369 has 16 divisors (see below), whose sum is σ = 4099200. Its totient is φ = 2504880.

The previous prime is 3218357. The next prime is 3218399. The reversal of 3218369 is 9638123.

It is not a de Polignac number, because 3218369 - 2¹⁶ = 3152833 is a prime.

It is a super-3 number, since 3×3218369³ (a number of 21 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3218399) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3347 + ... + 4199.

It is an arithmetic number, because the mean of its divisors is an integer number (256200).

Almost surely, 2^3218369 is an apocalyptic number.

It is an amenable number.

3218369 is a deficient number, since it is larger than the sum of its proper divisors (880831).

3218369 is an equidigital number, since it uses as much as digits as its factorization.

3218369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 885 (or 871 counting only the distinct ones).

The product of its digits is 7776, while the sum is 32.

The square root of 3218369 is about 1793.9813265472. The cubic root of 3218369 is about 147.6426886951.

The spelling of 3218369 in words is "three million, two hundred eighteen thousand, three hundred sixty-nine".