899312999 has 16 divisors (see below), whose sum is σ = 977205600. Its totient is φ = 822704256.

The previous prime is 899312951. The next prime is 899313013. The reversal of 899312999 is 999213998.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-899312999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (899312929) 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, 800252 + ... + 801374.

It is an arithmetic number, because the mean of its divisors is an integer number (61075350).

Almost surely, 2^899312999 is an apocalyptic number.

899312999 is a deficient number, since it is larger than the sum of its proper divisors (77892601).

899312999 is a wasteful number, since it uses less digits than its factorization.

899312999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1634.

The product of its digits is 2834352, while the sum is 59.

The square root of 899312999 is about 29988.5477974509. The cubic root of 899312999 is about 965.2436583036.

Subtracting 899312999 from its reverse (999213998), we obtain a palindrome (99900999).

The spelling of 899312999 in words is "eight hundred ninety-nine million, three hundred twelve thousand, nine hundred ninety-nine".