3621413 has 4 divisors (see below), whose sum is σ = 3627468. Its totient is φ = 3615360.

The previous prime is 3621403. The next prime is 3621461. The reversal of 3621413 is 3141263.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1181569 + 2439844 = 1087^2 + 1562^2 .

It is a cyclic number.

It is not a de Polignac number, because 3621413 - 2⁸ = 3621157 is a prime.

It is a super-2 number, since 2×3621413² = 26229264233138, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3621403) 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, 2018 + ... + 3363.

It is an arithmetic number, because the mean of its divisors is an integer number (906867).

Almost surely, 2^3621413 is an apocalyptic number.

It is an amenable number.

3621413 is a deficient number, since it is larger than the sum of its proper divisors (6055).

3621413 is an equidigital number, since it uses as much as digits as its factorization.

3621413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6054.

The product of its digits is 432, while the sum is 20.

The square root of 3621413 is about 1903.0010509719. The cubic root of 3621413 is about 153.5651560548.

Adding to 3621413 its reverse (3141263), we get a palindrome (6762676).

The spelling of 3621413 in words is "three million, six hundred twenty-one thousand, four hundred thirteen".