3621533 has 4 divisors (see below), whose sum is σ = 3812160. Its totient is φ = 3430908.

The previous prime is 3621529. The next prime is 3621559. The reversal of 3621533 is 3351263.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3621533 - 2² = 3621529 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3621499 and 3621508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3621593) 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, 95285 + ... + 95322.

It is an arithmetic number, because the mean of its divisors is an integer number (953040).

Almost surely, 2^3621533 is an apocalyptic number.

It is an amenable number.

3621533 is a deficient number, since it is larger than the sum of its proper divisors (190627).

3621533 is a wasteful number, since it uses less digits than its factorization.

3621533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190626.

The product of its digits is 1620, while the sum is 23.

The square root of 3621533 is about 1903.0325798577. The cubic root of 3621533 is about 153.5668522266.

Adding to 3621533 its reverse (3351263), we get a palindrome (6972796).

The spelling of 3621533 in words is "three million, six hundred twenty-one thousand, five hundred thirty-three".