99830285 has 8 divisors (see below), whose sum is σ = 122718456. Its totient is φ = 77916160.

The previous prime is 99830243. The next prime is 99830299. The reversal of 99830285 is 58203899.

It can be written as a sum of positive squares in 4 ways, for example, as 3378244 + 96452041 = 1838^2 + 9821^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 99830285 - 2¹⁸ = 99568141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 243284 + ... + 243693.

It is an arithmetic number, because the mean of its divisors is an integer number (15339807).

Almost surely, 2^99830285 is an apocalyptic number.

It is an amenable number.

99830285 is a deficient number, since it is larger than the sum of its proper divisors (22888171).

99830285 is a wasteful number, since it uses less digits than its factorization.

99830285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 487023.

The product of its (nonzero) digits is 155520, while the sum is 44.

The square root of 99830285 is about 9991.5106465439. The cubic root of 99830285 is about 463.8961522575.

The spelling of 99830285 in words is "ninety-nine million, eight hundred thirty thousand, two hundred eighty-five".