99825823 has 2 divisors, whose sum is σ = 99825824. Its totient is φ = 99825822.

The previous prime is 99825809. The next prime is 99825827. The reversal of 99825823 is 32852899.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 99825823 - 2⁹ = 99825311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99825827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49912911 + 49912912.

It is an arithmetic number, because the mean of its divisors is an integer number (49912912).

Almost surely, 2^99825823 is an apocalyptic number.

99825823 is a deficient number, since it is larger than the sum of its proper divisors (1).

99825823 is an equidigital number, since it uses as much as digits as its factorization.

99825823 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 311040, while the sum is 46.

The square root of 99825823 is about 9991.2873544904. The cubic root of 99825823 is about 463.8892407427.

The spelling of 99825823 in words is "ninety-nine million, eight hundred twenty-five thousand, eight hundred twenty-three".