99998995 has 16 divisors (see below), whose sum is σ = 127169280. Its totient is φ = 75276000.

The previous prime is 99998971. The next prime is 99998999. The reversal of 99998995 is 59989999.

It is not a de Polignac number, because 99998995 - 2¹¹ = 99996947 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 99998995.

It is not an unprimeable number, because it can be changed into a prime (99998999) 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 15 ways as a sum of consecutive naturals, for example, 10860 + ... + 17830.

It is an arithmetic number, because the mean of its divisors is an integer number (7948080).

Almost surely, 2^99998995 is an apocalyptic number.

99998995 is a gapful number since it is divisible by the number (95) formed by its first and last digit.

99998995 is a deficient number, since it is larger than the sum of its proper divisors (27170285).

99998995 is a wasteful number, since it uses less digits than its factorization.

99998995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7146.

The product of its digits is 21257640, while the sum is 67.

The square root of 99998995 is about 9999.9497498737. The cubic root of 99998995 is about 464.1573284238.

The spelling of 99998995 in words is "ninety-nine million, nine hundred ninety-eight thousand, nine hundred ninety-five".