6718161 has 4 divisors (see below), whose sum is σ = 8957552. Its totient is φ = 4478772.

The previous prime is 6718099. The next prime is 6718163. The reversal of 6718161 is 1618176.

It is a happy number.

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 not a de Polignac number, because 6718161 - 2⁹ = 6717649 is a prime.

It is a D-number.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6718163) 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, 1119691 + ... + 1119696.

It is an arithmetic number, because the mean of its divisors is an integer number (2239388).

Almost surely, 2^6718161 is an apocalyptic number.

It is an amenable number.

6718161 is a deficient number, since it is larger than the sum of its proper divisors (2239391).

6718161 is a wasteful number, since it uses less digits than its factorization.

6718161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2239390.

The product of its digits is 2016, while the sum is 30.

The square root of 6718161 is about 2591.9415502669. The cubic root of 6718161 is about 188.6905436754.

The spelling of 6718161 in words is "six million, seven hundred eighteen thousand, one hundred sixty-one".