899118719 has 4 divisors (see below), whose sum is σ = 899303160. Its totient is φ = 898934280.

The previous prime is 899118713. The next prime is 899118721. The reversal of 899118719 is 917811998.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 917811998 = 2 ⋅458905999.

It is a cyclic number.

It is not a de Polignac number, because 899118719 - 2²⁰ = 898070143 is a prime.

It is a super-2 number, since 2×899118719² = 1616828941712401922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (899118713) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84704 + ... + 94725.

It is an arithmetic number, because the mean of its divisors is an integer number (224825790).

Almost surely, 2^899118719 is an apocalyptic number.

899118719 is a deficient number, since it is larger than the sum of its proper divisors (184441).

899118719 is a wasteful number, since it uses less digits than its factorization.

899118719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184440.

The product of its digits is 326592, while the sum is 53.

The square root of 899118719 is about 29985.3083859413. The cubic root of 899118719 is about 965.1741455964.

The spelling of 899118719 in words is "eight hundred ninety-nine million, one hundred eighteen thousand, seven hundred nineteen".