100909691 has 8 divisors (see below), whose sum is σ = 104005440. Its totient is φ = 97848072.

The previous prime is 100909687. The next prime is 100909729. The reversal of 100909691 is 196909001.

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 100909691 - 2² = 100909687 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100909621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2465 + ... + 14418.

It is an arithmetic number, because the mean of its divisors is an integer number (13000680).

Almost surely, 2^100909691 is an apocalyptic number.

100909691 is a deficient number, since it is larger than the sum of its proper divisors (3095749).

100909691 is a wasteful number, since it uses less digits than its factorization.

100909691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17065.

The product of its (nonzero) digits is 4374, while the sum is 35.

The square root of 100909691 is about 10045.3815756297. The cubic root of 100909691 is about 465.5621074521.

The spelling of 100909691 in words is "one hundred million, nine hundred nine thousand, six hundred ninety-one".