9858945 has 16 divisors (see below), whose sum is σ = 15822720. Its totient is φ = 5241984.

The previous prime is 9858887. The next prime is 9858949. The reversal of 9858945 is 5498589.

It is a happy number.

9858945 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9858945 - 2¹⁴ = 9842561 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 9858894 and 9858903.

It is not an unprimeable number, because it can be changed into a prime (9858949) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5332 + ... + 6938.

It is an arithmetic number, because the mean of its divisors is an integer number (988920).

Almost surely, 2^9858945 is an apocalyptic number.

It is an amenable number.

9858945 is a deficient number, since it is larger than the sum of its proper divisors (5963775).

9858945 is a wasteful number, since it uses less digits than its factorization.

9858945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2024.

The product of its digits is 518400, while the sum is 48.

The square root of 9858945 is about 3139.8956989047. The cubic root of 9858945 is about 214.4256891811.

The spelling of 9858945 in words is "nine million, eight hundred fifty-eight thousand, nine hundred forty-five".