99992538 has 24 divisors (see below), whose sum is σ = 229395348. Its totient is φ = 31370112.

The previous prime is 99992533. The next prime is 99992539. The reversal of 99992538 is 83529999.

It can be written as a sum of positive squares in 2 ways, for example, as 98545329 + 1447209 = 9927^2 + 1203^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (99992533) 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 in 11 ways as a sum of consecutive naturals, for example, 163081 + ... + 163692.

Almost surely, 2^99992538 is an apocalyptic number.

99992538 is an abundant number, since it is smaller than the sum of its proper divisors (129402810).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

99992538 is a wasteful number, since it uses less digits than its factorization.

99992538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326798 (or 326795 counting only the distinct ones).

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

The square root of 99992538 is about 9999.6268930396. The cubic root of 99992538 is about 464.1473378955.

The spelling of 99992538 in words is "ninety-nine million, nine hundred ninety-two thousand, five hundred thirty-eight".