9985481 has 8 divisors (see below), whose sum is σ = 11025504. Its totient is φ = 8967520.

The previous prime is 9985453. The next prime is 9985499. The reversal of 9985481 is 1845899.

9985481 = 356² + 357² + ... + 421².

9985481 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9985481 is a prime.

It is a super-2 number, since 2×9985481² = 199419661602722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9985421) 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, 4556 + ... + 6381.

It is an arithmetic number, because the mean of its divisors is an integer number (1378188).

Almost surely, 2^9985481 is an apocalyptic number.

It is an amenable number.

9985481 is a deficient number, since it is larger than the sum of its proper divisors (1040023).

9985481 is a wasteful number, since it uses less digits than its factorization.

9985481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11031.

The product of its digits is 103680, while the sum is 44.

The square root of 9985481 is about 3159.9811708300. The cubic root of 9985481 is about 215.3391510429.

The spelling of 9985481 in words is "nine million, nine hundred eighty-five thousand, four hundred eighty-one".