99985273 has 2 divisors, whose sum is σ = 99985274. Its totient is φ = 99985272.

The previous prime is 99985271. The next prime is 99985297. The reversal of 99985273 is 37258999.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 65092624 + 34892649 = 8068^2 + 5907^2 .

It is a cyclic number.

It is not a de Polignac number, because 99985273 - 2¹ = 99985271 is a prime.

Together with 99985271, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 99985273.

It is not a weakly prime, because it can be changed into another prime (99985271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49992636 + 49992637.

It is an arithmetic number, because the mean of its divisors is an integer number (49992637).

Almost surely, 2^99985273 is an apocalyptic number.

It is an amenable number.

99985273 is a deficient number, since it is larger than the sum of its proper divisors (1).

99985273 is an equidigital number, since it uses as much as digits as its factorization.

99985273 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1224720, while the sum is 52.

The square root of 99985273 is about 9999.2636228874. The cubic root of 99985273 is about 464.1360966831.

The spelling of 99985273 in words is "ninety-nine million, nine hundred eighty-five thousand, two hundred seventy-three".