985477760 has 128 divisors (see below), whose sum is σ = 2543043600. Its totient is φ = 363790336.

The previous prime is 985477733. The next prime is 985477771. The reversal of 985477760 is 67774589.

It can be written as a sum of positive squares in 8 ways, for example, as 515108416 + 470369344 = 22696^2 + 21688^2 .

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (53).

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, 575786 + ... + 577494.

Almost surely, 2^985477760 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 985477760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1271521800).

985477760 is an abundant number, since it is smaller than the sum of its proper divisors (1557565840).

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

985477760 is a wasteful number, since it uses less digits than its factorization.

985477760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1798 (or 1786 counting only the distinct ones).

The product of its (nonzero) digits is 2963520, while the sum is 53.

The square root of 985477760 is about 31392.3200799176. The cubic root of 985477760 is about 995.1356296010.

The spelling of 985477760 in words is "nine hundred eighty-five million, four hundred seventy-seven thousand, seven hundred sixty".