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9961471 = 132926423

9961471 has 8 divisors (see below), whose sum is σ = 11098080. Its totient is φ = 8877792.

The previous prime is 9961463. The next prime is 9961487. The reversal of 9961471 is 1741699.

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 9961471 - 23 = 9961463 is a prime.

It is a super-3 number, since 3×99614713 (a number of 22 digits) contains 333 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a plaindrome in base 8.

It is a self number, because there is not a number n which added to its sum of digits gives 9961471.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9961421) by changing a digit.

Being equal to 19×219-1, it is a Woodall number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12835 + ... + 13588.

It is an arithmetic number, because the mean of its divisors is an integer number (1387260).

Almost surely, 29961471 is an apocalyptic number.

9961471 is a deficient number, since it is larger than the sum of its proper divisors (1136609).

9961471 is a wasteful number, since it uses less digits than its factorization.

9961471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26465.

The product of its digits is 13608, while the sum is 37.

The square root of 9961471 is about 3156.1798111008. The cubic root of 9961471 is about 215.1664188352.

The spelling of 9961471 in words is "nine million, nine hundred sixty-one thousand, four hundred seventy-one".

Divisors: 1 13 29 377 26423 343499 766267 9961471