9894864 has 80 divisors (see below), whose sum is σ = 29859200. Its totient is φ = 2822400.

The previous prime is 9894851. The next prime is 9894883. The reversal of 9894864 is 4684989.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16164 + ... + 16764.

It is an arithmetic number, because the mean of its divisors is an integer number (373240).

Almost surely, 2^9894864 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 9894864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14929600).

9894864 is an abundant number, since it is smaller than the sum of its proper divisors (19964336).

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

9894864 is a wasteful number, since it uses less digits than its factorization.

9894864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 633 (or 613 counting only the distinct ones).

The product of its digits is 497664, while the sum is 48.

The square root of 9894864 is about 3145.6102746526. The cubic root of 9894864 is about 214.6857785967.

The spelling of 9894864 in words is "nine million, eight hundred ninety-four thousand, eight hundred sixty-four".