9873870 has 32 divisors (see below), whose sum is σ = 23801472. Its totient is φ = 2621472.

The previous prime is 9873859. The next prime is 9873881. The reversal of 9873870 is 783789.

It is an interprime number because it is at equal distance from previous prime (9873859) and next prime (9873881).

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 15 ways as a sum of consecutive naturals, for example, 7909 + ... + 9071.

It is an arithmetic number, because the mean of its divisors is an integer number (743796).

Almost surely, 2^9873870 is an apocalyptic number.

9873870 is an abundant number, since it is smaller than the sum of its proper divisors (13927602).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9873870 is a wasteful number, since it uses less digits than its factorization.

9873870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1456.

The product of its (nonzero) digits is 84672, while the sum is 42.

The square root of 9873870 is about 3142.2714714041. The cubic root of 9873870 is about 214.5338376642.

The spelling of 9873870 in words is "nine million, eight hundred seventy-three thousand, eight hundred seventy".