3318641 has 8 divisors (see below), whose sum is σ = 3431400. Its totient is φ = 3207168.

The previous prime is 3318631. The next prime is 3318671. The reversal of 3318641 is 1468133.

3318641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2560000 + 758641 = 1600^2 + 871^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3318641 - 2¹⁸ = 3056497 is a prime.

It is a super-2 number, since 2×3318641² = 22026756173762, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 3318641.

It is not an unprimeable number, because it can be changed into a prime (3318631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9335 + ... + 9683.

It is an arithmetic number, because the mean of its divisors is an integer number (428925).

Almost surely, 2^3318641 is an apocalyptic number.

It is an amenable number.

3318641 is a deficient number, since it is larger than the sum of its proper divisors (112759).

3318641 is a wasteful number, since it uses less digits than its factorization.

3318641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 643.

The product of its digits is 1728, while the sum is 26.

The square root of 3318641 is about 1821.7137535848. The cubic root of 3318641 is about 149.1603606599.

The spelling of 3318641 in words is "three million, three hundred eighteen thousand, six hundred forty-one".