100699685 has 4 divisors (see below), whose sum is σ = 120839628. Its totient is φ = 80559744.

The previous prime is 100699657. The next prime is 100699717. The reversal of 100699685 is 586996001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 12208036 + 88491649 = 3494^2 + 9407^2 .

It is a cyclic number.

It is not a de Polignac number, because 100699685 - 2¹⁴ = 100683301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10069964 + ... + 10069973.

It is an arithmetic number, because the mean of its divisors is an integer number (30209907).

Almost surely, 2^100699685 is an apocalyptic number.

It is an amenable number.

100699685 is a deficient number, since it is larger than the sum of its proper divisors (20139943).

100699685 is an equidigital number, since it uses as much as digits as its factorization.

100699685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20139942.

The product of its (nonzero) digits is 116640, while the sum is 44.

The square root of 100699685 is about 10034.9232682667. The cubic root of 100699685 is about 465.2389183443.

The spelling of 100699685 in words is "one hundred million, six hundred ninety-nine thousand, six hundred eighty-five".