985547720 has 64 divisors (see below), whose sum is σ = 2296661040. Its totient is φ = 380390400.

The previous prime is 985547711. The next prime is 985547743. The reversal of 985547720 is 27745589.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 454798276 + 530749444 = 21326^2 + 23038^2 .

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, 125510 + ... + 133130.

Almost surely, 2^985547720 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 985547720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1148330520).

985547720 is an abundant number, since it is smaller than the sum of its proper divisors (1311113320).

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

985547720 is a wasteful number, since it uses less digits than its factorization.

985547720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7746 (or 7742 counting only the distinct ones).

The product of its (nonzero) digits is 705600, while the sum is 47.

The square root of 985547720 is about 31393.4343454169. The cubic root of 985547720 is about 995.1591775842.

It can be divided in two parts, 9855 and 47720, that added together give a palindrome (57575).

The spelling of 985547720 in words is "nine hundred eighty-five million, five hundred forty-seven thousand, seven hundred twenty".