99998785 has 8 divisors (see below), whose sum is σ = 121061160. Its totient is φ = 79290624.

The previous prime is 99998783. The next prime is 99998797. The reversal of 99998785 is 58789999.

It can be written as a sum of positive squares in 4 ways, for example, as 5345344 + 94653441 = 2312^2 + 9729^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 99998785 - 2¹ = 99998783 is a prime.

It is not an unprimeable number, because it can be changed into a prime (99998783) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87930 + ... + 89059.

It is an arithmetic number, because the mean of its divisors is an integer number (15132645).

Almost surely, 2^99998785 is an apocalyptic number.

It is an amenable number.

99998785 is a deficient number, since it is larger than the sum of its proper divisors (21062375).

99998785 is a wasteful number, since it uses less digits than its factorization.

99998785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177107.

The product of its digits is 14696640, while the sum is 64.

The square root of 99998785 is about 9999.9392498155. The cubic root of 99998785 is about 464.1570035102.

The spelling of 99998785 in words is "ninety-nine million, nine hundred ninety-eight thousand, seven hundred eighty-five".