8978688 has 90 divisors (see below), whose sum is σ = 26834654. Its totient is φ = 2985984.

The previous prime is 8978687. The next prime is 8978689. The reversal of 8978688 is 8868798.

It is an interprime number because it is at equal distance from previous prime (8978687) and next prime (8978689).

It can be written as a sum of positive squares in only one way, i.e., 5992704 + 2985984 = 2448^2 + 1728^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (8978687) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 20520 + ... + 20952.

Almost surely, 2^8978688 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 8978688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13417327).

8978688 is an abundant number, since it is smaller than the sum of its proper divisors (17855966).

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

8978688 is an equidigital number, since it uses as much as digits as its factorization.

8978688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 461 (or 438 counting only the distinct ones).

The product of its digits is 1548288, while the sum is 54.

The square root of 8978688 is about 2996.4458947226. The cubic root of 8978688 is about 207.8440645856.

The spelling of 8978688 in words is "eight million, nine hundred seventy-eight thousand, six hundred eighty-eight".