10305805 has 4 divisors (see below), whose sum is σ = 12366972. Its totient is φ = 8244640.

The previous prime is 10305793. The next prime is 10305811. The reversal of 10305805 is 50850301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50850301 = 1607 ⋅31643.

It can be written as a sum of positive squares in 2 ways, for example, as 7986276 + 2319529 = 2826^2 + 1523^2 .

It is not a de Polignac number, because 10305805 - 2⁵ = 10305773 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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, 1030576 + ... + 1030585.

It is an arithmetic number, because the mean of its divisors is an integer number (3091743).

Almost surely, 2^10305805 is an apocalyptic number.

It is an amenable number.

10305805 is a deficient number, since it is larger than the sum of its proper divisors (2061167).

10305805 is an equidigital number, since it uses as much as digits as its factorization.

10305805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2061166.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 10305805 is about 3210.2655653388. The cubic root of 10305805 is about 217.6175785634.

It can be divided in two parts, 1030580 and 5, that multiplied together give a square (5152900 = 2270²).

The spelling of 10305805 in words is "ten million, three hundred five thousand, eight hundred five".