3621634 has 16 divisors (see below), whose sum is σ = 5643000. Its totient is φ = 1741824.

The previous prime is 3621623. The next prime is 3621643. The reversal of 3621634 is 4361263.

It can be written as a sum of positive squares in 4 ways, for example, as 3621409 + 225 = 1903^2 + 15^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3621599 and 3621608.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7842 + ... + 8290.

Almost surely, 2^3621634 is an apocalyptic number.

3621634 is a deficient number, since it is larger than the sum of its proper divisors (2021366).

3621634 is a wasteful number, since it uses less digits than its factorization.

3621634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 597.

The product of its digits is 2592, while the sum is 25.

The square root of 3621634 is about 1903.0591162652. The cubic root of 3621634 is about 153.5682798087.

Adding to 3621634 its reverse (4361263), we get a palindrome (7982897).

The spelling of 3621634 in words is "three million, six hundred twenty-one thousand, six hundred thirty-four".