898404165 has 12 divisors (see below), whose sum is σ = 1557233964. Its totient is φ = 479148864.

The previous prime is 898404163. The next prime is 898404187. The reversal of 898404165 is 561404898.

898404165 is a `hidden beast` number, since 89 + 8 + 404 + 165 = 666.

898404165 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 414448164 + 483956001 = 20358^2 + 21999^2 .

It is not a de Polignac number, because 898404165 - 2¹ = 898404163 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 19964537 = 898404165 / (8 + 9 + 8 + 4 + 0 + 4 + 1 + 6 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 898404165.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (898404163) 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, 9982224 + ... + 9982313.

It is an arithmetic number, because the mean of its divisors is an integer number (129769497).

Almost surely, 2^898404165 is an apocalyptic number.

It is an amenable number.

898404165 is a deficient number, since it is larger than the sum of its proper divisors (658829799).

898404165 is a wasteful number, since it uses less digits than its factorization.

898404165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19964548 (or 19964545 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 45.

The square root of 898404165 is about 29973.3909493070. The cubic root of 898404165 is about 964.9183944881.

The spelling of 898404165 in words is "eight hundred ninety-eight million, four hundred four thousand, one hundred sixty-five".