988698 has 16 divisors (see below), whose sum is σ = 1987200. Its totient is φ = 327936.

The previous prime is 988693. The next prime is 988711. The reversal of 988698 is 896889.

988698 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (988693) by changing a digit.

988698 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, 1978 + ... + 2426.

It is an arithmetic number, because the mean of its divisors is an integer number (124200).

2⁹⁸⁸⁶⁹⁸ is an apocalyptic number.

988698 is an abundant number, since it is smaller than the sum of its proper divisors (998502).

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

988698 is a wasteful number, since it uses less digits than its factorization.

988698 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 821.

The product of its digits is 248832, while the sum is 48.

The square root of 988698 is about 994.3329422281. The cubic root of 988698 is about 99.6218384074.

Subtracting from 988698 its reverse (896889), we obtain a square (91809 = 303²).

The spelling of 988698 in words is "nine hundred eighty-eight thousand, six hundred ninety-eight".