9873849 has 4 divisors (see below), whose sum is σ = 13165136. Its totient is φ = 6582564.

The previous prime is 9873839. The next prime is 9873859. The reversal of 9873849 is 9483789.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (9873839) and next prime (9873859).

It is not a de Polignac number, because 9873849 - 2⁵ = 9873817 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 = 9873798 and 9873807.

It is not an unprimeable number, because it can be changed into a prime (9873839) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1645639 + ... + 1645644.

It is an arithmetic number, because the mean of its divisors is an integer number (3291284).

Almost surely, 2^9873849 is an apocalyptic number.

It is an amenable number.

9873849 is a deficient number, since it is larger than the sum of its proper divisors (3291287).

9873849 is a wasteful number, since it uses less digits than its factorization.

9873849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3291286.

The product of its digits is 435456, while the sum is 48.

The square root of 9873849 is about 3142.2681298705. The cubic root of 9873849 is about 214.5336855720.

The spelling of 9873849 in words is "nine million, eight hundred seventy-three thousand, eight hundred forty-nine".