899210303289 has 81 divisors (see below), whose sum is σ = 1412713172143. Its totient is φ = 572282927568.

The previous prime is 899210303249. The next prime is 899210303357. The reversal of 899210303289 is 982303012998.

The square root of 899210303289 is 948267.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 731225083689 + 167985219600 = 855117^2 + 409860^2 .

It is a tau number, because it is divible by the number of its divisors (81).

It is not a de Polignac number, because 899210303289 - 2⁷ = 899210303161 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (899210303219) by changing a digit.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 1766621167 + ... + 1766621675.

Almost surely, 2^899210303289 is an apocalyptic number.

899210303289 is the 948267-th square number.

899210303289 is the 474134-th centered octagonal number.

It is an amenable number.

899210303289 is a deficient number, since it is larger than the sum of its proper divisors (513502868854).

899210303289 is an frugal number, since it uses more digits than its factorization.

899210303289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1088 (or 535 counting only the distinct ones).

The product of its (nonzero) digits is 1679616, while the sum is 54.

The spelling of 899210303289 in words is "eight hundred ninety-nine billion, two hundred ten million, three hundred three thousand, two hundred eighty-nine".