10645805 has 4 divisors (see below), whose sum is σ = 12774972. Its totient is φ = 8516640.

The previous prime is 10645801. The next prime is 10645807. The reversal of 10645805 is 50854601.

It is a happy number.

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 6240004 + 4405801 = 2498^2 + 2099^2 .

It is not a de Polignac number, because 10645805 - 2² = 10645801 is a prime.

It is a super-2 number, since 2×10645805² = 226666328196050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10645801) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 1064576 + ... + 1064585.

It is an arithmetic number, because the mean of its divisors is an integer number (3193743).

Almost surely, 2^10645805 is an apocalyptic number.

It is an amenable number.

10645805 is a deficient number, since it is larger than the sum of its proper divisors (2129167).

10645805 is an equidigital number, since it uses as much as digits as its factorization.

10645805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2129166.

The product of its (nonzero) digits is 4800, while the sum is 29.

The square root of 10645805 is about 3262.7909831922. The cubic root of 10645805 is about 219.9848818812.

The spelling of 10645805 in words is "ten million, six hundred forty-five thousand, eight hundred five".