989476488 has 192 divisors, whose sum is σ = 3598358400. Its totient is φ = 237219840.

The previous prime is 989476487. The next prime is 989476489. The reversal of 989476488 is 884674989.

989476488 is a `hidden beast` number, since 9 + 89 + 4 + 76 + 488 = 666.

It is an interprime number because it is at equal distance from previous prime (989476487) and next prime (989476489).

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (989476487) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 65208 + ... + 78936.

It is an arithmetic number, because the mean of its divisors is an integer number (18741450).

Almost surely, 2^989476488 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 989476488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1799179200).

989476488 is an abundant number, since it is smaller than the sum of its proper divisors (2608881912).

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

989476488 is a wasteful number, since it uses less digits than its factorization.

989476488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13772 (or 13765 counting only the distinct ones).

The product of its digits is 27869184, while the sum is 63.

The square root of 989476488 is about 31455.9451932381. The cubic root of 989476488 is about 996.4797852958.

The spelling of 989476488 in words is "nine hundred eighty-nine million, four hundred seventy-six thousand, four hundred eighty-eight".