9591671 has 4 divisors (see below), whose sum is σ = 9655344. Its totient is φ = 9528000.

The previous prime is 9591649. The next prime is 9591683. The reversal of 9591671 is 1761959.

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 9591671 - 2¹⁸ = 9329527 is a prime.

It is a Duffinian number.

It is a plaindrome in base 8.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9591641) 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, 31610 + ... + 31911.

It is an arithmetic number, because the mean of its divisors is an integer number (2413836).

Almost surely, 2^9591671 is an apocalyptic number.

9591671 is a deficient number, since it is larger than the sum of its proper divisors (63673).

9591671 is a wasteful number, since it uses less digits than its factorization.

9591671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63672.

The product of its digits is 17010, while the sum is 38.

The square root of 9591671 is about 3097.0422987102. The cubic root of 9591671 is about 212.4702315855.

The spelling of 9591671 in words is "nine million, five hundred ninety-one thousand, six hundred seventy-one".