3621133 has 4 divisors (see below), whose sum is σ = 3626140. Its totient is φ = 3616128.

The previous prime is 3621127. The next prime is 3621139. The reversal of 3621133 is 3311263.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (3621127) and next prime (3621139).

It can be written as a sum of positive squares in 2 ways, for example, as 2566404 + 1054729 = 1602^2 + 1027^2 .

It is a cyclic number.

It is not a de Polignac number, because 3621133 - 2²¹ = 1523981 is a prime.

It is a super-2 number, since 2×3621133² = 26225208407378, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3621133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3621139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1188 + ... + 2941.

It is an arithmetic number, because the mean of its divisors is an integer number (906535).

Almost surely, 2^3621133 is an apocalyptic number.

It is an amenable number.

3621133 is a deficient number, since it is larger than the sum of its proper divisors (5007).

3621133 is an equidigital number, since it uses as much as digits as its factorization.

3621133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5006.

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

The square root of 3621133 is about 1902.9274815400. The cubic root of 3621133 is about 153.5611981750.

Adding to 3621133 its reverse (3311263), we get a palindrome (6932396).

The spelling of 3621133 in words is "three million, six hundred twenty-one thousand, one hundred thirty-three".