10805749 has 4 divisors (see below), whose sum is σ = 10817100. Its totient is φ = 10794400.

The previous prime is 10805741. The next prime is 10805783. The reversal of 10805749 is 94750801.

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 10125124 + 680625 = 3182^2 + 825^2 .

It is a cyclic number.

It is not a de Polignac number, because 10805749 - 2³ = 10805741 is a prime.

It is a super-2 number, since 2×10805749² = 233528422902002, 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 (10805741) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 4102 + ... + 6199.

It is an arithmetic number, because the mean of its divisors is an integer number (2704275).

Almost surely, 2^10805749 is an apocalyptic number.

It is an amenable number.

10805749 is a deficient number, since it is larger than the sum of its proper divisors (11351).

10805749 is a wasteful number, since it uses less digits than its factorization.

10805749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11350.

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 10805749 is about 3287.2099111557. The cubic root of 10805749 is about 221.0811042520.

The spelling of 10805749 in words is "ten million, eight hundred five thousand, seven hundred forty-nine".