6617213 has 4 divisors (see below), whose sum is σ = 6622368. Its totient is φ = 6612060.

The previous prime is 6617197. The next prime is 6617257. The reversal of 6617213 is 3127166.

6617213 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 6617213 - 2⁴ = 6617197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6617293) 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, 1058 + ... + 3788.

It is an arithmetic number, because the mean of its divisors is an integer number (1655592).

Almost surely, 2^6617213 is an apocalyptic number.

It is an amenable number.

6617213 is a deficient number, since it is larger than the sum of its proper divisors (5155).

6617213 is a wasteful number, since it uses less digits than its factorization.

6617213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5154.

The product of its digits is 1512, while the sum is 26.

The square root of 6617213 is about 2572.3944098835. The cubic root of 6617213 is about 187.7406734599.

The spelling of 6617213 in words is "six million, six hundred seventeen thousand, two hundred thirteen".