17080991 has 4 divisors (see below), whose sum is σ = 17147712. Its totient is φ = 17014272.

The previous prime is 17080979. The next prime is 17081003. The reversal of 17080991 is 19908071.

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 (17080979) and next prime (17081003).

It is a cyclic number.

It is not a de Polignac number, because 17080991 - 2¹⁰ = 17079967 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 (17082991) 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, 32975 + ... + 33488.

It is an arithmetic number, because the mean of its divisors is an integer number (4286928).

Almost surely, 2^17080991 is an apocalyptic number.

17080991 is a deficient number, since it is larger than the sum of its proper divisors (66721).

17080991 is an equidigital number, since it uses as much as digits as its factorization.

17080991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66720.

The product of its (nonzero) digits is 4536, while the sum is 35.

The square root of 17080991 is about 4132.9155568436. The cubic root of 17080991 is about 257.5358469591.

The spelling of 17080991 in words is "seventeen million, eighty thousand, nine hundred ninety-one".