10605805 has 24 divisors (see below), whose sum is σ = 15032952. Its totient is φ = 7160832.

The previous prime is 10605797. The next prime is 10605817. The reversal of 10605805 is 50850601.

It can be written as a sum of positive squares in 4 ways, for example, as 1713481 + 8892324 = 1309^2 + 2982^2 .

It is not a de Polignac number, because 10605805 - 2³ = 10605797 is a prime.

It is a super-2 number, since 2×10605805² = 224966199396050, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10605805.

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 in 23 ways as a sum of consecutive naturals, for example, 17589 + ... + 18181.

It is an arithmetic number, because the mean of its divisors is an integer number (626373).

Almost surely, 2^10605805 is an apocalyptic number.

It is an amenable number.

10605805 is a deficient number, since it is larger than the sum of its proper divisors (4427147).

10605805 is an equidigital number, since it uses as much as digits as its factorization.

10605805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 685 (or 678 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 10605805 is about 3256.6554929866. The cubic root of 10605805 is about 219.7090161252.

The spelling of 10605805 in words is "ten million, six hundred five thousand, eight hundred five".