99730273 has 2 divisors, whose sum is σ = 99730274. Its totient is φ = 99730272.

The previous prime is 99730271. The next prime is 99730307. The reversal of 99730273 is 37203799.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 84768849 + 14961424 = 9207^2 + 3868^2 .

It is a cyclic number.

It is not a de Polignac number, because 99730273 - 2¹ = 99730271 is a prime.

It is a super-2 number, since 2×99730273² = 19892254705309058, which contains 22 as substring.

Together with 99730271, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (99730271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49865136 + 49865137.

It is an arithmetic number, because the mean of its divisors is an integer number (49865137).

Almost surely, 2^99730273 is an apocalyptic number.

It is an amenable number.

99730273 is a deficient number, since it is larger than the sum of its proper divisors (1).

99730273 is an equidigital number, since it uses as much as digits as its factorization.

99730273 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 71442, while the sum is 40.

The square root of 99730273 is about 9986.5045436329. The cubic root of 99730273 is about 463.7411869788.

The spelling of 99730273 in words is "ninety-nine million, seven hundred thirty thousand, two hundred seventy-three".