106691 has 8 divisors (see below), whose sum is σ = 119280. Its totient is φ = 94752.

The previous prime is 106681. The next prime is 106693. The reversal of 106691 is 196601.

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 106691 - 2⁶ = 106627 is a prime.

It is a super-2 number, since 2×106691² = 22765938962, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (106693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 236 + ... + 518.

It is an arithmetic number, because the mean of its divisors is an integer number (14910).

2¹⁰⁶⁶⁹¹ is an apocalyptic number.

106691 is a deficient number, since it is larger than the sum of its proper divisors (12589).

106691 is a wasteful number, since it uses less digits than its factorization.

106691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325.

The product of its (nonzero) digits is 324, while the sum is 23.

The square root of 106691 is about 326.6358829033. The cubic root of 106691 is about 47.4288500803.

It can be divided in two parts, 106 and 691, that added together give a palindrome (797).

The spelling of 106691 in words is "one hundred six thousand, six hundred ninety-one".