8978984 has 32 divisors (see below), whose sum is σ = 19430400. Its totient is φ = 3810240.

The previous prime is 8978971. The next prime is 8978989. The reversal of 8978984 is 4898798.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8978989) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5369 + ... + 6839.

It is an arithmetic number, because the mean of its divisors is an integer number (607200).

Almost surely, 2^8978984 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 8978984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9715200).

8978984 is an abundant number, since it is smaller than the sum of its proper divisors (10451416).

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

8978984 is a wasteful number, since it uses less digits than its factorization.

8978984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1593 (or 1589 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 53.

The square root of 8978984 is about 2996.4952861635. The cubic root of 8978984 is about 207.8463485558.

The spelling of 8978984 in words is "eight million, nine hundred seventy-eight thousand, nine hundred eighty-four".