9871971359 has 8 divisors (see below), whose sum is σ = 10191603840. Its totient is φ = 9552412800.

The previous prime is 9871971337. The next prime is 9871971401. The reversal of 9871971359 is 9531791789.

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 9871971359 - 2²⁴ = 9855194143 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9871971298 and 9871971307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9871971559) 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, 413747 + ... + 436955.

It is an arithmetic number, because the mean of its divisors is an integer number (1273950480).

Almost surely, 2^9871971359 is an apocalyptic number.

9871971359 is a deficient number, since it is larger than the sum of its proper divisors (319632481).

9871971359 is a wasteful number, since it uses less digits than its factorization.

9871971359 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36961.

The product of its digits is 4286520, while the sum is 59.

The square root of 9871971359 is about 99357.7946564838. The cubic root of 9871971359 is about 2145.2008591836.

The spelling of 9871971359 in words is "nine billion, eight hundred seventy-one million, nine hundred seventy-one thousand, three hundred fifty-nine".