989345570 has 16 divisors (see below), whose sum is σ = 1783099008. Its totient is φ = 395232240.

The previous prime is 989345569. The next prime is 989345579. The reversal of 989345570 is 75543989.

It is not an unprimeable number, because it can be changed into a prime (989345579) 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, 54986 + ... + 70725.

It is an arithmetic number, because the mean of its divisors is an integer number (111443688).

Almost surely, 2^989345570 is an apocalyptic number.

989345570 is a deficient number, since it is larger than the sum of its proper divisors (793753438).

989345570 is a wasteful number, since it uses less digits than its factorization.

989345570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126505.

The product of its (nonzero) digits is 1360800, while the sum is 50.

The square root of 989345570 is about 31453.8641505301. The cubic root of 989345570 is about 996.4358351545.

The spelling of 989345570 in words is "nine hundred eighty-nine million, three hundred forty-five thousand, five hundred seventy".