100686563 has 8 divisors (see below), whose sum is σ = 106697808. Its totient is φ = 94685184.

The previous prime is 100686557. The next prime is 100686569. The reversal of 100686563 is 365686001.

It is an interprime number because it is at equal distance from previous prime (100686557) and next prime (100686569).

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 100686563 - 2¹⁰ = 100685539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100686569) 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 7 ways as a sum of consecutive naturals, for example, 34520 + ... + 37322.

It is an arithmetic number, because the mean of its divisors is an integer number (13337226).

Almost surely, 2^100686563 is an apocalyptic number.

100686563 is a deficient number, since it is larger than the sum of its proper divisors (6011245).

100686563 is a wasteful number, since it uses less digits than its factorization.

100686563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4933.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 100686563 is about 10034.2694303073. The cubic root of 100686563 is about 465.2187093097.

The spelling of 100686563 in words is "one hundred million, six hundred eighty-six thousand, five hundred sixty-three".