3613421 has 8 divisors (see below), whose sum is σ = 4143360. Its totient is φ = 3086928.

The previous prime is 3613417. The next prime is 3613433. The reversal of 3613421 is 1243163.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3613421 - 2² = 3613417 is a prime.

It is a super-2 number, since 2×3613421² = 26113622646482, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3613393 and 3613402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3613481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2060 + ... + 3386.

It is an arithmetic number, because the mean of its divisors is an integer number (517920).

Almost surely, 2^3613421 is an apocalyptic number.

It is an amenable number.

3613421 is a deficient number, since it is larger than the sum of its proper divisors (529939).

3613421 is a wasteful number, since it uses less digits than its factorization.

3613421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1723.

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

The square root of 3613421 is about 1900.9000499763. The cubic root of 3613421 is about 153.4521065663.

Adding to 3613421 its reverse (1243163), we get a palindrome (4856584).

The spelling of 3613421 in words is "three million, six hundred thirteen thousand, four hundred twenty-one".