9869874 has 48 divisors (see below), whose sum is σ = 23392800. Its totient is φ = 2767296.

The previous prime is 9869869. The next prime is 9869903. The reversal of 9869874 is 4789689.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17062 + ... + 17630.

It is an arithmetic number, because the mean of its divisors is an integer number (487350).

Almost surely, 2^9869874 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9869874, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11696400).

9869874 is an abundant number, since it is smaller than the sum of its proper divisors (13522926).

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

9869874 is a wasteful number, since it uses less digits than its factorization.

9869874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 647 (or 640 counting only the distinct ones).

The product of its digits is 870912, while the sum is 51.

The square root of 9869874 is about 3141.6355612961. The cubic root of 9869874 is about 214.5048928199.

The spelling of 9869874 in words is "nine million, eight hundred sixty-nine thousand, eight hundred seventy-four".