99998023 has 4 divisors (see below), whose sum is σ = 100094400. Its totient is φ = 99901648.

The previous prime is 99998021. The next prime is 99998051. The reversal of 99998023 is 32089999.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 99998023 - 2¹ = 99998021 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 (99998021) 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 3 ways as a sum of consecutive naturals, for example, 46615 + ... + 48712.

It is an arithmetic number, because the mean of its divisors is an integer number (25023600).

Almost surely, 2^99998023 is an apocalyptic number.

99998023 is a deficient number, since it is larger than the sum of its proper divisors (96377).

99998023 is a wasteful number, since it uses less digits than its factorization.

99998023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96376.

The product of its (nonzero) digits is 314928, while the sum is 49.

The square root of 99998023 is about 9999.9011495114. The cubic root of 99998023 is about 464.1558245341.

The spelling of 99998023 in words is "ninety-nine million, nine hundred ninety-eight thousand, twenty-three".