981617360 has 20 divisors (see below), whose sum is σ = 2282260548. Its totient is φ = 392646912.

The previous prime is 981617359. The next prime is 981617381. The reversal of 981617360 is 63716189.

It can be written as a sum of positive squares in 2 ways, for example, as 546811456 + 434805904 = 23384^2 + 20852^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6135029 + ... + 6135188.

Almost surely, 2^981617360 is an apocalyptic number.

It is an amenable number.

981617360 is an abundant number, since it is smaller than the sum of its proper divisors (1300643188).

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

981617360 is a wasteful number, since it uses less digits than its factorization.

981617360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12270230 (or 12270224 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 981617360 is about 31330.7733706016. The cubic root of 981617360 is about 993.8345182918.

The spelling of 981617360 in words is "nine hundred eighty-one million, six hundred seventeen thousand, three hundred sixty".