899205481 has 4 divisors (see below), whose sum is σ = 921137364. Its totient is φ = 877273600.

The previous prime is 899205469. The next prime is 899205509. The reversal of 899205481 is 184502998.

899205481 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 395651881 + 503553600 = 19891^2 + 22440^2 .

It is a cyclic number.

It is not a de Polignac number, because 899205481 - 2⁵ = 899205449 is a prime.

It is a super-2 number, since 2×899205481² = 1617140994120882722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (899205421) 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, 10965880 + ... + 10965961.

It is an arithmetic number, because the mean of its divisors is an integer number (230284341).

Almost surely, 2^899205481 is an apocalyptic number.

It is an amenable number.

899205481 is a deficient number, since it is larger than the sum of its proper divisors (21931883).

899205481 is a wasteful number, since it uses less digits than its factorization.

899205481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21931882.

The product of its (nonzero) digits is 207360, while the sum is 46.

The square root of 899205481 is about 29986.7550928739. The cubic root of 899205481 is about 965.2051899750.

The spelling of 899205481 in words is "eight hundred ninety-nine million, two hundred five thousand, four hundred eighty-one".