3618321 has 16 divisors (see below), whose sum is σ = 5643264. Its totient is φ = 2019024.

The previous prime is 3618317. The next prime is 3618323. The reversal of 3618321 is 1238163.

3618321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3618321 - 2² = 3618317 is a prime.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3618291 and 3618300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3618323) 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 15 ways as a sum of consecutive naturals, for example, 1101 + ... + 2906.

It is an arithmetic number, because the mean of its divisors is an integer number (352704).

Almost surely, 2^3618321 is an apocalyptic number.

It is an amenable number.

3618321 is a deficient number, since it is larger than the sum of its proper divisors (2024943).

3618321 is a wasteful number, since it uses less digits than its factorization.

3618321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4060.

The product of its digits is 864, while the sum is 24.

The square root of 3618321 is about 1902.1884764660. The cubic root of 3618321 is about 153.5214384357.

The spelling of 3618321 in words is "three million, six hundred eighteen thousand, three hundred twenty-one".