9894890484 has 72 divisors (see below), whose sum is σ = 25550834400. Its totient is φ = 3228000192.

The previous prime is 9894890483. The next prime is 9894890497. The reversal of 9894890484 is 4840984989.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9894890483) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 304242 + ... + 335190.

It is an arithmetic number, because the mean of its divisors is an integer number (354872700).

Almost surely, 2^9894890484 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 9894890484, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12775417200).

9894890484 is an abundant number, since it is smaller than the sum of its proper divisors (15655943916).

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

9894890484 is a wasteful number, since it uses less digits than its factorization.

9894890484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31149 (or 31144 counting only the distinct ones).

The product of its (nonzero) digits is 23887872, while the sum is 63.

The square root of 9894890484 is about 99473.0641128542. The cubic root of 9894890484 is about 2146.8597013485.

The spelling of 9894890484 in words is "nine billion, eight hundred ninety-four million, eight hundred ninety thousand, four hundred eighty-four".