105809716 has 6 divisors (see below), whose sum is σ = 185167010. Its totient is φ = 52904856.

The previous prime is 105809681. The next prime is 105809723. The reversal of 105809716 is 617908501.

It can be written as a sum of positive squares in only one way, i.e., 71470116 + 34339600 = 8454^2 + 5860^2 .

It is a super-2 number, since 2×105809716² = 22391392000001312, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13226211 + ... + 13226218.

Almost surely, 2^105809716 is an apocalyptic number.

It is an amenable number.

105809716 is a deficient number, since it is larger than the sum of its proper divisors (79357294).

105809716 is a wasteful number, since it uses less digits than its factorization.

105809716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26452433 (or 26452431 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 37.

The square root of 105809716 is about 10286.3849821013. The cubic root of 105809716 is about 472.9789900186.

The spelling of 105809716 in words is "one hundred five million, eight hundred nine thousand, seven hundred sixteen".