9847864 has 48 divisors (see below), whose sum is σ = 20903400. Its totient is φ = 4323264.

The previous prime is 9847847. The next prime is 9847889. The reversal of 9847864 is 4687489.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 54927 + ... + 55105.

Almost surely, 2^9847864 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9847864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10451700).

9847864 is an abundant number, since it is smaller than the sum of its proper divisors (11055536).

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

9847864 is a wasteful number, since it uses less digits than its factorization.

9847864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244 (or 217 counting only the distinct ones).

The product of its digits is 387072, while the sum is 46.

The square root of 9847864 is about 3138.1306537491. The cubic root of 9847864 is about 214.3453241993.

The spelling of 9847864 in words is "nine million, eight hundred forty-seven thousand, eight hundred sixty-four".