9827145 has 12 divisors (see below), whose sum is σ = 17033796. Its totient is φ = 5241120.

The previous prime is 9827131. The next prime is 9827179. The reversal of 9827145 is 5417289.

It can be written as a sum of positive squares in 2 ways, for example, as 7241481 + 2585664 = 2691^2 + 1608^2 .

It is not a de Polignac number, because 9827145 - 2⁷ = 9827017 is a prime.

It is an Ulam number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 109146 + ... + 109235.

It is an arithmetic number, because the mean of its divisors is an integer number (1419483).

Almost surely, 2^9827145 is an apocalyptic number.

It is an amenable number.

9827145 is a deficient number, since it is larger than the sum of its proper divisors (7206651).

9827145 is a wasteful number, since it uses less digits than its factorization.

9827145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218392 (or 218389 counting only the distinct ones).

The product of its digits is 20160, while the sum is 36.

The square root of 9827145 is about 3134.8277464639. The cubic root of 9827145 is about 214.1948977069.

The spelling of 9827145 in words is "nine million, eight hundred twenty-seven thousand, one hundred forty-five".