99843471 has 24 divisors (see below), whose sum is σ = 177500960. Its totient is φ = 52664256.

The previous prime is 99843421. The next prime is 99843473. The reversal of 99843471 is 17434899.

It is not a de Polignac number, because 99843471 - 2⁶ = 99843407 is a prime.

It is a super-3 number, since 3×99843471³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99843473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 60136 + ... + 61773.

Almost surely, 2^99843471 is an apocalyptic number.

99843471 is a gapful number since it is divisible by the number (91) formed by its first and last digit.

99843471 is a deficient number, since it is larger than the sum of its proper divisors (77657489).

99843471 is a wasteful number, since it uses less digits than its factorization.

99843471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121935 (or 121932 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 99843471 is about 9992.1704849347. The cubic root of 99843471 is about 463.9165758039.

The spelling of 99843471 in words is "ninety-nine million, eight hundred forty-three thousand, four hundred seventy-one".