9971471 has 8 divisors (see below), whose sum is σ = 10155600. Its totient is φ = 9789120.

The previous prime is 9971461. The next prime is 9971483. The reversal of 9971471 is 1741799.

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

It is a cyclic number.

It is not a de Polignac number, because 9971471 - 2⁶ = 9971407 is a prime.

It is a super-3 number, since 3×9971471³ (a number of 22 digits) contains 333 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 (9971411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15800 + ... + 16418.

It is an arithmetic number, because the mean of its divisors is an integer number (1269450).

Almost surely, 2^9971471 is an apocalyptic number.

9971471 is a deficient number, since it is larger than the sum of its proper divisors (184129).

9971471 is a wasteful number, since it uses less digits than its factorization.

9971471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 889.

The product of its digits is 15876, while the sum is 38.

The square root of 9971471 is about 3157.7636073652. The cubic root of 9971471 is about 215.2383943026.

The spelling of 9971471 in words is "nine million, nine hundred seventy-one thousand, four hundred seventy-one".