99023543 has 4 divisors (see below), whose sum is σ = 99253728. Its totient is φ = 98793360.

The previous prime is 99023489. The next prime is 99023563. The reversal of 99023543 is 34532099.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34532099 = 7 ⋅4933157.

It is a cyclic number.

It is not a de Polignac number, because 99023543 - 2¹² = 99019447 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 (99023563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114446 + ... + 115307.

It is an arithmetic number, because the mean of its divisors is an integer number (24813432).

Almost surely, 2^99023543 is an apocalyptic number.

99023543 is a deficient number, since it is larger than the sum of its proper divisors (230185).

99023543 is a wasteful number, since it uses less digits than its factorization.

99023543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230184.

The product of its (nonzero) digits is 29160, while the sum is 35.

The square root of 99023543 is about 9951.0573810023. The cubic root of 99023543 is about 462.6431685332.

The spelling of 99023543 in words is "ninety-nine million, twenty-three thousand, five hundred forty-three".