3621331 has 16 divisors (see below), whose sum is σ = 4333824. Its totient is φ = 2961504.

The previous prime is 3621329. The next prime is 3621341. The reversal of 3621331 is 1331263.

3621331 is digitally balanced in base 8, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3621331 - 2¹ = 3621329 is a prime.

It is a super-2 number, since 2×3621331² = 26228076423122, which contains 22 as substring.

It is a Duffinian number.

3621331 is strictly pandigital in base 8.

It is a junction number, because it is equal to n+sod(n) for n = 3621299 and 3621308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3621341) 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, 15840 + ... + 16066.

It is an arithmetic number, because the mean of its divisors is an integer number (270864).

Almost surely, 2^3621331 is an apocalyptic number.

3621331 is a deficient number, since it is larger than the sum of its proper divisors (712493).

3621331 is a wasteful number, since it uses less digits than its factorization.

3621331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330.

The product of its digits is 324, while the sum is 19.

The square root of 3621331 is about 1902.9795059327. The cubic root of 3621331 is about 153.5639969826.

Adding to 3621331 its reverse (1331263), we get a palindrome (4952594).

The spelling of 3621331 in words is "three million, six hundred twenty-one thousand, three hundred thirty-one".