9806471231 has 4 divisors (see below), whose sum is σ = 10071511032. Its totient is φ = 9541431432.

The previous prime is 9806471201. The next prime is 9806471239. The reversal of 9806471231 is 1321746089.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1321746089 = 21893 ⋅60373.

It is a cyclic number.

It is not a de Polignac number, because 9806471231 - 2³⁰ = 8732729407 is a prime.

It is a super-2 number, since 2×9806471231² (a number of 21 digits) 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 (9806471239) 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, 132519845 + ... + 132519918.

It is an arithmetic number, because the mean of its divisors is an integer number (2517877758).

Almost surely, 2^9806471231 is an apocalyptic number.

9806471231 is a deficient number, since it is larger than the sum of its proper divisors (265039801).

9806471231 is a wasteful number, since it uses less digits than its factorization.

9806471231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265039800.

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 9806471231 is about 99027.6286245409. The cubic root of 9806471231 is about 2140.4458871602.

The spelling of 9806471231 in words is "nine billion, eight hundred six million, four hundred seventy-one thousand, two hundred thirty-one".