9885491 has 32 divisors (see below), whose sum is σ = 13478400. Its totient is φ = 7015680.

The previous prime is 9885443. The next prime is 9885493. The reversal of 9885491 is 1945889.

It is not a de Polignac number, because 9885491 - 2¹⁰ = 9884467 is a prime.

It is a super-2 number, since 2×9885491² = 195445864622162, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9885493) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 42311 + ... + 42543.

It is an arithmetic number, because the mean of its divisors is an integer number (421200).

Almost surely, 2^9885491 is an apocalyptic number.

9885491 is a deficient number, since it is larger than the sum of its proper divisors (3592909).

9885491 is a wasteful number, since it uses less digits than its factorization.

9885491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299.

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

The square root of 9885491 is about 3144.1200676819. The cubic root of 9885491 is about 214.6179694952.

The spelling of 9885491 in words is "nine million, eight hundred eighty-five thousand, four hundred ninety-one".