99819698 has 8 divisors (see below), whose sum is σ = 163341360. Its totient is φ = 45372580.

The previous prime is 99819697. The next prime is 99819743. The reversal of 99819698 is 89691899.

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

It is a super-2 number, since 2×99819698² = 19927944217622408, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (99819691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2268608 + ... + 2268651.

It is an arithmetic number, because the mean of its divisors is an integer number (20417670).

Almost surely, 2^99819698 is an apocalyptic number.

99819698 is a deficient number, since it is larger than the sum of its proper divisors (63521662).

99819698 is a wasteful number, since it uses less digits than its factorization.

99819698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4537272.

The product of its digits is 2519424, while the sum is 59.

The square root of 99819698 is about 9990.9808327311. The cubic root of 99819698 is about 463.8797529515.

The spelling of 99819698 in words is "ninety-nine million, eight hundred nineteen thousand, six hundred ninety-eight".