99992543 has 4 divisors (see below), whose sum is σ = 114277200. Its totient is φ = 85707888.

The previous prime is 99992539. The next prime is 99992617. The reversal of 99992543 is 34529999.

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

It is not a de Polignac number, because 99992543 - 2² = 99992539 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 99992491 and 99992500.

It is a congruent 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 (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7142318 + ... + 7142331.

It is an arithmetic number, because the mean of its divisors is an integer number (28569300).

Almost surely, 2^99992543 is an apocalyptic number.

99992543 is a deficient number, since it is larger than the sum of its proper divisors (14284657).

99992543 is a wasteful number, since it uses less digits than its factorization.

99992543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14284656.

The product of its digits is 787320, while the sum is 50.

The square root of 99992543 is about 9999.6271430489. The cubic root of 99992543 is about 464.1473456318.

The spelling of 99992543 in words is "ninety-nine million, nine hundred ninety-two thousand, five hundred forty-three".