99019619 has 8 divisors (see below), whose sum is σ = 100154880. Its totient is φ = 97888456.

The previous prime is 99019607. The next prime is 99019631. The reversal of 99019619 is 91691099.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (99019607) and next prime (99019631).

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 99019619 - 2¹⁶ = 98954083 is a prime.

It is a super-2 number, since 2×99019619² = 19609769893810322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 99019619.

It is not an unprimeable number, because it can be changed into a prime (99019639) 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 7 ways as a sum of consecutive naturals, for example, 89222 + ... + 90324.

It is an arithmetic number, because the mean of its divisors is an integer number (12519360).

Almost surely, 2^99019619 is an apocalyptic number.

99019619 is a deficient number, since it is larger than the sum of its proper divisors (1135261).

99019619 is a wasteful number, since it uses less digits than its factorization.

99019619 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2049.

The product of its (nonzero) digits is 39366, while the sum is 44.

The square root of 99019619 is about 9950.8602140719. The cubic root of 99019619 is about 462.6370574081.

The spelling of 99019619 in words is "ninety-nine million, nineteen thousand, six hundred nineteen".