9664271 has 4 divisors (see below), whose sum is σ = 9780792. Its totient is φ = 9547752.

The previous prime is 9664247. The next prime is 9664273. The reversal of 9664271 is 1724669.

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 9664271 - 2¹⁴ = 9647887 is a prime.

It is a super-2 number, since 2×9664271² = 186796267922882, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9664273) 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, 58136 + ... + 58301.

It is an arithmetic number, because the mean of its divisors is an integer number (2445198).

Almost surely, 2^9664271 is an apocalyptic number.

9664271 is a deficient number, since it is larger than the sum of its proper divisors (116521).

9664271 is a wasteful number, since it uses less digits than its factorization.

9664271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116520.

The product of its digits is 18144, while the sum is 35.

The square root of 9664271 is about 3108.7410635175. The cubic root of 9664271 is about 213.0049518712.

The spelling of 9664271 in words is "nine million, six hundred sixty-four thousand, two hundred seventy-one".