108997 has 8 divisors (see below), whose sum is σ = 130176. Its totient is φ = 89232.

The previous prime is 108991. The next prime is 109001. The reversal of 108997 is 799801.

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 108997 - 2⁷ = 108869 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108991) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 178 + ... + 499.

It is an arithmetic number, because the mean of its divisors is an integer number (16272).

2¹⁰⁸⁹⁹⁷ is an apocalyptic number.

It is an amenable number.

108997 is a deficient number, since it is larger than the sum of its proper divisors (21179).

108997 is an equidigital number, since it uses as much as digits as its factorization.

108997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 707.

The product of its (nonzero) digits is 4536, while the sum is 34.

The square root of 108997 is about 330.1469369841. The cubic root of 108997 is about 47.7681235626.

The spelling of 108997 in words is "one hundred eight thousand, nine hundred ninety-seven".