105686885 has 4 divisors (see below), whose sum is σ = 126824268. Its totient is φ = 84549504.

The previous prime is 105686809. The next prime is 105686897. The reversal of 105686885 is 588686501.

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 82319329 + 23367556 = 9073^2 + 4834^2 .

It is a cyclic number.

It is not a de Polignac number, because 105686885 - 2¹⁶ = 105621349 is a prime.

It is a super-2 number, since 2×105686885² = 22339435322006450, which contains 22 as substring.

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, 10568684 + ... + 10568693.

It is an arithmetic number, because the mean of its divisors is an integer number (31706067).

Almost surely, 2^105686885 is an apocalyptic number.

It is an amenable number.

105686885 is a deficient number, since it is larger than the sum of its proper divisors (21137383).

105686885 is an equidigital number, since it uses as much as digits as its factorization.

105686885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21137382.

The product of its (nonzero) digits is 460800, while the sum is 47.

The square root of 105686885 is about 10280.4126862690. The cubic root of 105686885 is about 472.7958972625.

The spelling of 105686885 in words is "one hundred five million, six hundred eighty-six thousand, eight hundred eighty-five".