898998 has 16 divisors (see below), whose sum is σ = 1807920. Its totient is φ = 298016.

The previous prime is 898987. The next prime is 899009. The reversal of 898998 is 899898.

It is an interprime number because it is at equal distance from previous prime (898987) and next prime (899009).

It is a plaindrome in base 8.

It is a zygodrome in base 8.

It is a self number, because there is not a number n which added to its sum of digits gives 898998.

It is a congruent number.

It is an unprimeable number.

898998 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1336 + ... + 1892.

It is an arithmetic number, because the mean of its divisors is an integer number (112995).

2⁸⁹⁸⁹⁹⁸ is an apocalyptic number.

898998 is an abundant number, since it is smaller than the sum of its proper divisors (908922).

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

898998 is a wasteful number, since it uses less digits than its factorization.

898998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 831.

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

The square root of 898998 is about 948.1550506114. The cubic root of 898998 is about 96.5130947715.

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

The spelling of 898998 in words is "eight hundred ninety-eight thousand, nine hundred ninety-eight".