9885971 has 4 divisors (see below), whose sum is σ = 9900192. Its totient is φ = 9871752.

The previous prime is 9885913. The next prime is 9885979. The reversal of 9885971 is 1795889.

It is a happy number.

9885971 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 9885971 - 2²² = 5691667 is a prime.

It is a super-2 number, since 2×9885971² = 195464845225682, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9885979) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6011 + ... + 7476.

It is an arithmetic number, because the mean of its divisors is an integer number (2475048).

Almost surely, 2^9885971 is an apocalyptic number.

9885971 is a deficient number, since it is larger than the sum of its proper divisors (14221).

9885971 is a wasteful number, since it uses less digits than its factorization.

9885971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14220.

The product of its digits is 181440, while the sum is 47.

The square root of 9885971 is about 3144.1963997181. The cubic root of 9885971 is about 214.6214431030.

The spelling of 9885971 in words is "nine million, eight hundred eighty-five thousand, nine hundred seventy-one".