9985450 has 48 divisors (see below), whose sum is σ = 20445120. Its totient is φ = 3611520.

The previous prime is 9985447. The next prime is 9985453. The reversal of 9985450 is 545899.

9985450 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (9985447) and next prime (9985453).

It is not an unprimeable number, because it can be changed into a prime (9985453) 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, 21622 + ... + 22078.

It is an arithmetic number, because the mean of its divisors is an integer number (425940).

Almost surely, 2^9985450 is an apocalyptic number.

9985450 is an abundant number, since it is smaller than the sum of its proper divisors (10459670).

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

9985450 is a wasteful number, since it uses less digits than its factorization.

9985450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 511 (or 506 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 40.

The square root of 9985450 is about 3159.9762657337. The cubic root of 9985450 is about 215.3389282020.

The spelling of 9985450 in words is "nine million, nine hundred eighty-five thousand, four hundred fifty".