9985260 has 72 divisors (see below), whose sum is σ = 29571696. Its totient is φ = 2517120.

The previous prime is 9985259. The next prime is 9985267. The reversal of 9985260 is 625899.

It is a happy number.

9985260 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (9985267) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21430 + ... + 21890.

It is an arithmetic number, because the mean of its divisors is an integer number (410718).

Almost surely, 2^9985260 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 9985260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14785848).

9985260 is an abundant number, since it is smaller than the sum of its proper divisors (19586436).

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

9985260 is a wasteful number, since it uses less digits than its factorization.

9985260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 511 (or 490 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 39.

The square root of 9985260 is about 3159.9462020737. The cubic root of 9985260 is about 215.3375623929.

The spelling of 9985260 in words is "nine million, nine hundred eighty-five thousand, two hundred sixty".