99825993 has 16 divisors (see below), whose sum is σ = 148112640. Its totient is φ = 66450672.

The previous prime is 99825991. The next prime is 99825997. The reversal of 99825993 is 39952899.

It is not a de Polignac number, because 99825993 - 2¹ = 99825991 is a prime.

It is not an unprimeable number, because it can be changed into a prime (99825991) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18480 + ... + 23262.

It is an arithmetic number, because the mean of its divisors is an integer number (9257040).

Almost surely, 2^99825993 is an apocalyptic number.

It is an amenable number.

99825993 is a deficient number, since it is larger than the sum of its proper divisors (48286647).

99825993 is a wasteful number, since it uses less digits than its factorization.

99825993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5565 (or 5559 counting only the distinct ones).

The product of its digits is 1574640, while the sum is 54.

The square root of 99825993 is about 9991.2958618990. The cubic root of 99825993 is about 463.8895040718.

The spelling of 99825993 in words is "ninety-nine million, eight hundred twenty-five thousand, nine hundred ninety-three".