7111085 has 8 divisors (see below), whose sum is σ = 8578680. Its totient is φ = 5658624.

The previous prime is 7111057. The next prime is 7111087. The reversal of 7111085 is 5801117.

It can be written as a sum of positive squares in 4 ways, for example, as 1283689 + 5827396 = 1133^2 + 2414^2 .

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 7111085 - 2⁶ = 7111021 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7111085.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7111087) 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 7 ways as a sum of consecutive naturals, for example, 2720 + ... + 4649.

It is an arithmetic number, because the mean of its divisors is an integer number (1072335).

Almost surely, 2^7111085 is an apocalyptic number.

It is an amenable number.

7111085 is a deficient number, since it is larger than the sum of its proper divisors (1467595).

7111085 is a wasteful number, since it uses less digits than its factorization.

7111085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7567.

The product of its (nonzero) digits is 280, while the sum is 23.

The square root of 7111085 is about 2666.6617708288. The cubic root of 7111085 is about 192.2997073402.

The spelling of 7111085 in words is "seven million, one hundred eleven thousand, eighty-five".