100806685 has 64 divisors (see below), whose sum is σ = 158906880. Its totient is φ = 59719680.

The previous prime is 100806679. The next prime is 100806691. The reversal of 100806685 is 586608001.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (100806679) and next prime (100806691).

It is not a de Polignac number, because 100806685 - 2⁵ = 100806653 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 100806685.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 418165 + ... + 418405.

It is an arithmetic number, because the mean of its divisors is an integer number (2482920).

Almost surely, 2^100806685 is an apocalyptic number.

It is an amenable number.

100806685 is a deficient number, since it is larger than the sum of its proper divisors (58100195).

100806685 is a wasteful number, since it uses less digits than its factorization.

100806685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326.

The product of its (nonzero) digits is 11520, while the sum is 34.

The square root of 100806685 is about 10040.2532338582. The cubic root of 100806685 is about 465.4036422723.

The spelling of 100806685 in words is "one hundred million, eight hundred six thousand, six hundred eighty-five".