9845645 has 8 divisors (see below), whose sum is σ = 12222360. Its totient is φ = 7604800.

The previous prime is 9845623. The next prime is 9845657. The reversal of 9845645 is 5465489.

It is a happy number.

9845645 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1898884 + 7946761 = 1378^2 + 2819^2 .

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

It is not a de Polignac number, because 9845645 - 2¹⁸ = 9583501 is a prime.

It is a super-3 number, since 3×9845645³ (a number of 22 digits) contains 333 as substring.

It is a congruent 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 7 ways as a sum of consecutive naturals, for example, 33806 + ... + 34095.

It is an arithmetic number, because the mean of its divisors is an integer number (1527795).

Almost surely, 2^9845645 is an apocalyptic number.

It is an amenable number.

9845645 is a deficient number, since it is larger than the sum of its proper divisors (2376715).

9845645 is a wasteful number, since it uses less digits than its factorization.

9845645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67935.

The product of its digits is 172800, while the sum is 41.

The square root of 9845645 is about 3137.7770793987. Note that the first 3 decimals coincide. The cubic root of 9845645 is about 214.3292236519.

The spelling of 9845645 in words is "nine million, eight hundred forty-five thousand, six hundred forty-five".