9985490 has 16 divisors (see below), whose sum is σ = 18140760. Its totient is φ = 3957120.

The previous prime is 9985453. The next prime is 9985499. The reversal of 9985490 is 945899.

9985490 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 8116801 + 1868689 = 2849^2 + 1367^2 .

It is not an unprimeable number, because it can be changed into a prime (9985499) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3491 + ... + 5670.

Almost surely, 2^9985490 is an apocalyptic number.

9985490 is a deficient number, since it is larger than the sum of its proper divisors (8155270).

9985490 is a wasteful number, since it uses less digits than its factorization.

9985490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9277.

The product of its (nonzero) digits is 116640, while the sum is 44.

The square root of 9985490 is about 3159.9825948888. The cubic root of 9985490 is about 215.3392157386.

The spelling of 9985490 in words is "nine million, nine hundred eighty-five thousand, four hundred ninety".