99986603 has 4 divisors (see below), whose sum is σ = 100385208. Its totient is φ = 99588000.

The previous prime is 99986597. The next prime is 99986609. The reversal of 99986603 is 30668999.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (99986597) and next prime (99986609).

It is a cyclic number.

It is not a de Polignac number, because 99986603 - 2⁶ = 99986539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99986609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 198926 + ... + 199427.

It is an arithmetic number, because the mean of its divisors is an integer number (25096302).

Almost surely, 2^99986603 is an apocalyptic number.

99986603 is a deficient number, since it is larger than the sum of its proper divisors (398605).

99986603 is a wasteful number, since it uses less digits than its factorization.

99986603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398604.

The product of its (nonzero) digits is 629856, while the sum is 50.

The square root of 99986603 is about 9999.3301275635. The cubic root of 99986603 is about 464.1381546470.

The spelling of 99986603 in words is "ninety-nine million, nine hundred eighty-six thousand, six hundred three".