9985271 has 4 divisors (see below), whose sum is σ = 10030272. Its totient is φ = 9940272.

The previous prime is 9985267. The next prime is 9985303. The reversal of 9985271 is 1725899.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1725899 = 7 ⋅246557.

It is a cyclic number.

It is not a de Polignac number, because 9985271 - 2² = 9985267 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9985231) 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, 22166 + ... + 22611.

It is an arithmetic number, because the mean of its divisors is an integer number (2507568).

Almost surely, 2^9985271 is an apocalyptic number.

9985271 is a deficient number, since it is larger than the sum of its proper divisors (45001).

9985271 is a wasteful number, since it uses less digits than its factorization.

9985271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45000.

The product of its digits is 45360, while the sum is 41.

The square root of 9985271 is about 3159.9479426092. The cubic root of 9985271 is about 215.3376414665.

The spelling of 9985271 in words is "nine million, nine hundred eighty-five thousand, two hundred seventy-one".