99988023 has 16 divisors (see below), whose sum is σ = 137325920. Its totient is φ = 64665216.

The previous prime is 99988019. The next prime is 99988037. The reversal of 99988023 is 32088999.

It is not a de Polignac number, because 99988023 - 2² = 99988019 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99988003) 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 15 ways as a sum of consecutive naturals, for example, 42933 + ... + 45201.

It is an arithmetic number, because the mean of its divisors is an integer number (8582870).

Almost surely, 2^99988023 is an apocalyptic number.

99988023 is a deficient number, since it is larger than the sum of its proper divisors (37337897).

99988023 is a wasteful number, since it uses less digits than its factorization.

99988023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2706.

The product of its (nonzero) digits is 279936, while the sum is 48.

The square root of 99988023 is about 9999.4011320679. The cubic root of 99988023 is about 464.1403518516.

The spelling of 99988023 in words is "ninety-nine million, nine hundred eighty-eight thousand, twenty-three".