989988360 has 64 divisors (see below), whose sum is σ = 2972592000. Its totient is φ = 263763456.

The previous prime is 989988359. The next prime is 989988361. The reversal of 989988360 is 63889989.

It is an interprime number because it is at equal distance from previous prime (989988359) and next prime (989988361).

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a junction number, because it is equal to n+sod(n) for n = 989988294 and 989988303.

It is not an unprimeable number, because it can be changed into a prime (989988361) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 164932 + ... + 170828.

It is an arithmetic number, because the mean of its divisors is an integer number (46446750).

Almost surely, 2^989988360 is an apocalyptic number.

It is an amenable number.

989988360 is an abundant number, since it is smaller than the sum of its proper divisors (1982603640).

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

989988360 is a wasteful number, since it uses less digits than its factorization.

989988360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7310 (or 7306 counting only the distinct ones).

The product of its (nonzero) digits is 6718464, while the sum is 60.

The square root of 989988360 is about 31464.0804728185. The cubic root of 989988360 is about 996.6515873131.

The spelling of 989988360 in words is "nine hundred eighty-nine million, nine hundred eighty-eight thousand, three hundred sixty".