7091 has 4 divisors (see below), whose sum is σ = 8112. Its totient is φ = 6072.

The previous prime is 7079. The next prime is 7103. The reversal of 7091 is 1907.

7091 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.

It is an interprime number because it is at equal distance from previous prime (7079) and next prime (7103).

It is a cyclic number.

It is not a de Polignac number, because 7091 - 2⁶ = 7027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7001) 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, 500 + ... + 513.

It is an arithmetic number, because the mean of its divisors is an integer number (2028).

2⁷⁰⁹¹ is an apocalyptic number.

7091 is a deficient number, since it is larger than the sum of its proper divisors (1021).

7091 is a wasteful number, since it uses less digits than its factorization.

7091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1020.

The product of its (nonzero) digits is 63, while the sum is 17.

The square root of 7091 is about 84.2080756222. The cubic root of 7091 is about 19.2118488783.

Adding to 7091 its reverse (1907), we get a palindrome (8998).

Subtracting from 7091 its reverse (1907), we obtain a square (5184 = 72²).

It can be divided in two parts, 70 and 91, that added together give a palindrome (161).

The spelling of 7091 in words is "seven thousand, ninety-one".