9571971 has 8 divisors (see below), whose sum is σ = 12819280. Its totient is φ = 6352992.

The previous prime is 9571951. The next prime is 9571981. The reversal of 9571971 is 1791759.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 9571971 - 2⁶ = 9571907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9571921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6280 + ... + 7653.

It is an arithmetic number, because the mean of its divisors is an integer number (1602410).

Almost surely, 2^9571971 is an apocalyptic number.

9571971 is a deficient number, since it is larger than the sum of its proper divisors (3247309).

9571971 is a wasteful number, since it uses less digits than its factorization.

9571971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14165.

The product of its digits is 19845, while the sum is 39.

The square root of 9571971 is about 3093.8602101582. The cubic root of 9571971 is about 212.3246701419.

The spelling of 9571971 in words is "nine million, five hundred seventy-one thousand, nine hundred seventy-one".