988398 has 24 divisors (see below), whose sum is σ = 2193048. Its totient is φ = 321552.

The previous prime is 988367. The next prime is 988409. The reversal of 988398 is 893889.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 136 + ... + 1412.

It is an arithmetic number, because the mean of its divisors is an integer number (91377).

2⁹⁸⁸³⁹⁸ is an apocalyptic number.

988398 is an abundant number, since it is smaller than the sum of its proper divisors (1204650).

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

988398 is a wasteful number, since it uses less digits than its factorization.

988398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1328 (or 1325 counting only the distinct ones).

The product of its digits is 124416, while the sum is 45.

The square root of 988398 is about 994.1820758795. The cubic root of 988398 is about 99.6117613246.

The spelling of 988398 in words is "nine hundred eighty-eight thousand, three hundred ninety-eight".