899898 has 16 divisors (see below), whose sum is σ = 1878336. Its totient is φ = 286880.

The previous prime is 899893. The next prime is 899903. The reversal of 899898 is 898998.

It is an interprime number because it is at equal distance from previous prime (899893) and next prime (899903).

It is a Curzon number.

It is a plaindrome in base 13.

It is a self number, because there is not a number n which added to its sum of digits gives 899898.

It is not an unprimeable number, because it can be changed into a prime (899891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3123 + ... + 3398.

It is an arithmetic number, because the mean of its divisors is an integer number (117396).

2⁸⁹⁹⁸⁹⁸ is an apocalyptic number.

899898 is an abundant number, since it is smaller than the sum of its proper divisors (978438).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

899898 is a wasteful number, since it uses less digits than its factorization.

899898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6549.

The product of its digits is 373248, while the sum is 51.

The square root of 899898 is about 948.6295378070. The cubic root of 899898 is about 96.5452909184.

Subtracting from 899898 its reverse (898998), we obtain a square (900 = 30²).

The spelling of 899898 in words is "eight hundred ninety-nine thousand, eight hundred ninety-eight".