9825745 has 8 divisors (see below), whose sum is σ = 12484584. Its totient is φ = 7398144.

The previous prime is 9825743. The next prime is 9825787. The reversal of 9825745 is 5475289.

9825745 = 2216² + 2217².

It can be written as a sum of positive squares in 4 ways, for example, as 4915089 + 4910656 = 2217^2 + 2216^2 .

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 9825745 - 2¹ = 9825743 is a prime.

It is a Duffinian number.

9825745 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 9825698 and 9825707.

It is not an unprimeable number, because it can be changed into a prime (9825743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57714 + ... + 57883.

It is an arithmetic number, because the mean of its divisors is an integer number (1560573).

Almost surely, 2^9825745 is an apocalyptic number.

9825745 is the 2217-th centered square number.

It is an amenable number.

9825745 is a deficient number, since it is larger than the sum of its proper divisors (2658839).

9825745 is a wasteful number, since it uses less digits than its factorization.

9825745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115619.

The product of its digits is 100800, while the sum is 40.

The square root of 9825745 is about 3134.6044407548. The cubic root of 9825745 is about 214.1847256410.

The spelling of 9825745 in words is "nine million, eight hundred twenty-five thousand, seven hundred forty-five".