2613221 has 8 divisors (see below), whose sum is σ = 2832480. Its totient is φ = 2396592.

The previous prime is 2613211. The next prime is 2613227. The reversal of 2613221 is 1223162.

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 2613221 - 2¹⁴ = 2596837 is a prime.

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 2613221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2613227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1766 + ... + 2888.

It is an arithmetic number, because the mean of its divisors is an integer number (354060).

2^2613221 is an apocalyptic number.

It is an amenable number.

2613221 is a deficient number, since it is larger than the sum of its proper divisors (219259).

2613221 is a wasteful number, since it uses less digits than its factorization.

2613221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1315.

The product of its digits is 144, while the sum is 17.

The square root of 2613221 is about 1616.5460092432. The cubic root of 2613221 is about 137.7395669319.

Adding to 2613221 its reverse (1223162), we get a palindrome (3836383).

The spelling of 2613221 in words is "two million, six hundred thirteen thousand, two hundred twenty-one".