105805828 has 6 divisors (see below), whose sum is σ = 185160206. Its totient is φ = 52902912.

The previous prime is 105805783. The next prime is 105805849. The reversal of 105805828 is 828508501.

It can be written as a sum of positive squares in only one way, i.e., 103591684 + 2214144 = 10178^2 + 1488^2 .

It is a super-2 number, since 2×105805828² = 22389746477531168, which contains 22 as substring.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 13225725 + ... + 13225732.

Almost surely, 2^105805828 is an apocalyptic number.

It is an amenable number.

105805828 is a deficient number, since it is larger than the sum of its proper divisors (79354378).

105805828 is a wasteful number, since it uses less digits than its factorization.

105805828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26451461 (or 26451459 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 37.

The square root of 105805828 is about 10286.1959926885. The cubic root of 105805828 is about 472.9731967106.

The spelling of 105805828 in words is "one hundred five million, eight hundred five thousand, eight hundred twenty-eight".