99789319 has 16 divisors (see below), whose sum is σ = 120499200. Its totient is φ = 80819424.

The previous prime is 99789307. The next prime is 99789329. The reversal of 99789319 is 91398799.

It is not a de Polignac number, because 99789319 - 2⁷ = 99789191 is a prime.

It is a super-2 number, since 2×99789319² = 19915816372967522, 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 99789319.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99789329) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4312 + ... + 14770.

It is an arithmetic number, because the mean of its divisors is an integer number (7531200).

Almost surely, 2^99789319 is an apocalyptic number.

99789319 is a deficient number, since it is larger than the sum of its proper divisors (20709881).

99789319 is a wasteful number, since it uses less digits than its factorization.

99789319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10542.

The product of its digits is 1102248, while the sum is 55.

The square root of 99789319 is about 9989.4603958372. The cubic root of 99789319 is about 463.8326893186.

The spelling of 99789319 in words is "ninety-nine million, seven hundred eighty-nine thousand, three hundred nineteen".