6617109 has 4 divisors (see below), whose sum is σ = 8822816. Its totient is φ = 4411404.

The previous prime is 6617087. The next prime is 6617159. The reversal of 6617109 is 9017166.

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.

It is a de Polignac number, because none of the positive numbers 2^k-6617109 is a prime.

It is a super-2 number, since 2×6617109² = 87572263035762, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6617159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1102849 + ... + 1102854.

It is an arithmetic number, because the mean of its divisors is an integer number (2205704).

Almost surely, 2^6617109 is an apocalyptic number.

It is an amenable number.

6617109 is a deficient number, since it is larger than the sum of its proper divisors (2205707).

6617109 is a wasteful number, since it uses less digits than its factorization.

6617109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2205706.

The product of its (nonzero) digits is 2268, while the sum is 30.

The square root of 6617109 is about 2572.3741951746. The cubic root of 6617109 is about 187.7396899072.

The spelling of 6617109 in words is "six million, six hundred seventeen thousand, one hundred nine".