9861471 has 6 divisors (see below), whose sum is σ = 14244360. Its totient is φ = 6574308.

The previous prime is 9861463. The next prime is 9861473. The reversal of 9861471 is 1741689.

It is not a de Polignac number, because 9861471 - 2³ = 9861463 is a prime.

It is a super-3 number, since 3×9861471³ (a number of 22 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9861473) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 547851 + ... + 547868.

It is an arithmetic number, because the mean of its divisors is an integer number (2374060).

Almost surely, 2^9861471 is an apocalyptic number.

9861471 is a deficient number, since it is larger than the sum of its proper divisors (4382889).

9861471 is a wasteful number, since it uses less digits than its factorization.

9861471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1095725 (or 1095722 counting only the distinct ones).

The product of its digits is 12096, while the sum is 36.

The square root of 9861471 is about 3140.2979158035. The cubic root of 9861471 is about 214.4440005738. Note that the first 3 decimals are identical.

The spelling of 9861471 in words is "nine million, eight hundred sixty-one thousand, four hundred seventy-one".