6980591 has 4 divisors (see below), whose sum is σ = 7391232. Its totient is φ = 6569952.

The previous prime is 6980587. The next prime is 6980593. The reversal of 6980591 is 1950896.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6980591 - 2² = 6980587 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 (6980593) 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, 205295 + ... + 205328.

It is an arithmetic number, because the mean of its divisors is an integer number (1847808).

Almost surely, 2^6980591 is an apocalyptic number.

6980591 is a deficient number, since it is larger than the sum of its proper divisors (410641).

6980591 is a wasteful number, since it uses less digits than its factorization.

6980591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410640.

The product of its (nonzero) digits is 19440, while the sum is 38.

The square root of 6980591 is about 2642.0808087566. The cubic root of 6980591 is about 191.1161542321.

It can be divided in two parts, 69805 and 91, that added together give a palindrome (69896).

The spelling of 6980591 in words is "six million, nine hundred eighty thousand, five hundred ninety-one".