9805745 has 8 divisors (see below), whose sum is σ = 11793984. Its totient is φ = 7826544.

The previous prime is 9805721. The next prime is 9805759. The reversal of 9805745 is 5475089.

9805745 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9805745 - 2⁸ = 9805489 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 9805699 and 9805708.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 422 + ... + 4448.

It is an arithmetic number, because the mean of its divisors is an integer number (1474248).

Almost surely, 2^9805745 is an apocalyptic number.

It is an amenable number.

9805745 is a deficient number, since it is larger than the sum of its proper divisors (1988239).

9805745 is a wasteful number, since it uses less digits than its factorization.

9805745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4519.

The product of its (nonzero) digits is 50400, while the sum is 38.

The square root of 9805745 is about 3131.4126205277. The cubic root of 9805745 is about 214.0393048020.

The spelling of 9805745 in words is "nine million, eight hundred five thousand, seven hundred forty-five".