981710880 has 96 divisors (see below), whose sum is σ = 3131654400. Its totient is φ = 258465792.

The previous prime is 981710879. The next prime is 981710897. The reversal of 981710880 is 88017189.

It is a tau number, because it is divible by the number of its divisors (96).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24976 + ... + 50864.

It is an arithmetic number, because the mean of its divisors is an integer number (32621400).

Almost surely, 2^981710880 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 981710880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1565827200).

981710880 is an abundant number, since it is smaller than the sum of its proper divisors (2149943520).

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

981710880 is a wasteful number, since it uses less digits than its factorization.

981710880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25986 (or 25978 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 42.

The square root of 981710880 is about 31332.2657974172. The cubic root of 981710880 is about 993.8660786046.

The spelling of 981710880 in words is "nine hundred eighty-one million, seven hundred ten thousand, eight hundred eighty".