899000001 has 12 divisors (see below), whose sum is σ = 1374941412. Its totient is φ = 564078336.

The previous prime is 898999999. The next prime is 899000017. The reversal of 899000001 is 100000998.

899000001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 334890000 + 564110001 = 18300^2 + 23751^2 .

It is not a de Polignac number, because 899000001 - 2¹ = 898999999 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (899000801) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2937756 + ... + 2938061.

It is an arithmetic number, because the mean of its divisors is an integer number (114578451).

Almost surely, 2^899000001 is an apocalyptic number.

It is an amenable number.

899000001 is a deficient number, since it is larger than the sum of its proper divisors (475941411).

899000001 is a wasteful number, since it uses less digits than its factorization.

899000001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5875840 (or 5875837 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 27.

The square root of 899000001 is about 29983.3287178058. The cubic root of 899000001 is about 965.1316637805.

Adding to 899000001 its reverse (100000998), we get a palindrome (999000999).

The spelling of 899000001 in words is "eight hundred ninety-nine million, one", and thus it is an aban number.