99730243 has 4 divisors (see below), whose sum is σ = 100231600. Its totient is φ = 99228888.

The previous prime is 99730199. The next prime is 99730271. The reversal of 99730243 is 34203799.

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 99730243 - 2⁹ = 99729731 is a prime.

It is a super-2 number, since 2×99730243² = 19892242737678098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99730273) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 250380 + ... + 250777.

It is an arithmetic number, because the mean of its divisors is an integer number (25057900).

Almost surely, 2^99730243 is an apocalyptic number.

99730243 is a deficient number, since it is larger than the sum of its proper divisors (501357).

99730243 is a wasteful number, since it uses less digits than its factorization.

99730243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 501356.

The product of its (nonzero) digits is 40824, while the sum is 37.

The square root of 99730243 is about 9986.5030416057. The cubic root of 99730243 is about 463.7411404792.

The spelling of 99730243 in words is "ninety-nine million, seven hundred thirty thousand, two hundred forty-three".