988659 has 16 divisors (see below), whose sum is σ = 1674240. Its totient is φ = 564840.

The previous prime is 988651. The next prime is 988661. The reversal of 988659 is 956889.

It is not a de Polignac number, because 988659 - 2³ = 988651 is a prime.

988659 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (988651) 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 15 ways as a sum of consecutive naturals, for example, 2427 + ... + 2804.

It is an arithmetic number, because the mean of its divisors is an integer number (104640).

2⁹⁸⁸⁶⁵⁹ is an apocalyptic number.

988659 is a deficient number, since it is larger than the sum of its proper divisors (685581).

988659 is a wasteful number, since it uses less digits than its factorization.

988659 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5247 (or 5241 counting only the distinct ones).

The product of its digits is 155520, while the sum is 45.

The square root of 988659 is about 994.3133308973. The cubic root of 988659 is about 99.6205285019.

The spelling of 988659 in words is "nine hundred eighty-eight thousand, six hundred fifty-nine".