9885438 has 24 divisors (see below), whose sum is σ = 21998808. Its totient is φ = 3205872.

The previous prime is 9885437. The next prime is 9885439. The reversal of 9885438 is 8345889.

It is an interprime number because it is at equal distance from previous prime (9885437) and next prime (9885439).

It is a junction number, because it is equal to n+sod(n) for n = 9885393 and 9885402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9885437) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6756 + ... + 8087.

It is an arithmetic number, because the mean of its divisors is an integer number (916617).

Almost surely, 2^9885438 is an apocalyptic number.

9885438 is an abundant number, since it is smaller than the sum of its proper divisors (12113370).

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

9885438 is a wasteful number, since it uses less digits than its factorization.

9885438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14888 (or 14885 counting only the distinct ones).

The product of its digits is 276480, while the sum is 45.

The square root of 9885438 is about 3144.1116392393. Note that the first 3 decimals coincide. The cubic root of 9885438 is about 214.6175859441.

The spelling of 9885438 in words is "nine million, eight hundred eighty-five thousand, four hundred thirty-eight".