989047080 has 192 divisors, whose sum is σ = 3889866240. Its totient is φ = 212760576.

The previous prime is 989047079. The next prime is 989047093. The reversal of 989047080 is 80740989.

989047080 is a `hidden beast` number, since 98 + 90 + 470 + 8 + 0 = 666.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 31297 + ... + 54383.

It is an arithmetic number, because the mean of its divisors is an integer number (20259720).

Almost surely, 2^989047080 is an apocalyptic number.

989047080 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 989047080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1944933120).

989047080 is an abundant number, since it is smaller than the sum of its proper divisors (2900819160).

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

989047080 is a wasteful number, since it uses less digits than its factorization.

989047080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23128 (or 23121 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The square root of 989047080 is about 31449.1189065767. The cubic root of 989047080 is about 996.3356153533.

The spelling of 989047080 in words is "nine hundred eighty-nine million, forty-seven thousand, eighty".