899344617 has 4 divisors (see below), whose sum is σ = 1199126160. Its totient is φ = 599563076.

The previous prime is 899344573. The next prime is 899344631. The reversal of 899344617 is 716443998.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 899344617 - 2¹¹ = 899342569 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 899344617.

It is not an unprimeable number, because it can be changed into a prime (899344637) 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 3 ways as a sum of consecutive naturals, for example, 149890767 + ... + 149890772.

It is an arithmetic number, because the mean of its divisors is an integer number (299781540).

Almost surely, 2^899344617 is an apocalyptic number.

It is an amenable number.

899344617 is a deficient number, since it is larger than the sum of its proper divisors (299781543).

899344617 is a wasteful number, since it uses less digits than its factorization.

899344617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299781542.

The product of its digits is 1306368, while the sum is 51.

The square root of 899344617 is about 29989.0749607253. The cubic root of 899344617 is about 965.2549701666.

The spelling of 899344617 in words is "eight hundred ninety-nine million, three hundred forty-four thousand, six hundred seventeen".