989791360 has 32 divisors (see below), whose sum is σ = 2366221500. Its totient is φ = 395916288.

The previous prime is 989791349. The next prime is 989791367. The reversal of 989791360 is 63197989.

It can be written as a sum of positive squares in 2 ways, for example, as 982947904 + 6843456 = 31352^2 + 2616^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is a junction number, because it is equal to n+sod(n) for n = 989791298 and 989791307.

It is not an unprimeable number, because it can be changed into a prime (989791367) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 772635 + ... + 773914.

Almost surely, 2^989791360 is an apocalyptic number.

It is an amenable number.

989791360 is an abundant number, since it is smaller than the sum of its proper divisors (1376430140).

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

989791360 is a wasteful number, since it uses less digits than its factorization.

989791360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1546568 (or 1546556 counting only the distinct ones).

The product of its (nonzero) digits is 734832, while the sum is 52.

The square root of 989791360 is about 31460.9497631588. The cubic root of 989791360 is about 996.5854742841.

The spelling of 989791360 in words is "nine hundred eighty-nine million, seven hundred ninety-one thousand, three hundred sixty".