99825471 has 12 divisors (see below), whose sum is σ = 145621320. Its totient is φ = 65890800.

The previous prime is 99825469. The next prime is 99825521. The reversal of 99825471 is 17452899.

It is not a de Polignac number, because 99825471 - 2¹ = 99825469 is a prime.

It is a super-3 number, since 3×99825471³ (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 (99825431) 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 11 ways as a sum of consecutive naturals, for example, 54001 + ... + 55818.

It is an arithmetic number, because the mean of its divisors is an integer number (12135110).

Almost surely, 2^99825471 is an apocalyptic number.

99825471 is a deficient number, since it is larger than the sum of its proper divisors (45795849).

99825471 is a wasteful number, since it uses less digits than its factorization.

99825471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109926 (or 109923 counting only the distinct ones).

The product of its digits is 181440, while the sum is 45.

The square root of 99825471 is about 9991.2697391273. The cubic root of 99825471 is about 463.8886954957. Note that the first 3 decimals are identical.

The spelling of 99825471 in words is "ninety-nine million, eight hundred twenty-five thousand, four hundred seventy-one".