988663 has 8 divisors (see below), whose sum is σ = 1083600. Its totient is φ = 896448.

The previous prime is 988661. The next prime is 988681. The reversal of 988663 is 366889.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 988663 - 2¹ = 988661 is a prime.

It is a Duffinian number.

988663 is a lucky number.

It is a nialpdrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (988661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123 + ... + 1411.

It is an arithmetic number, because the mean of its divisors is an integer number (135450).

2⁹⁸⁸⁶⁶³ is an apocalyptic number.

988663 is a deficient number, since it is larger than the sum of its proper divisors (94937).

988663 is a wasteful number, since it uses less digits than its factorization.

988663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1361.

The product of its digits is 62208, while the sum is 40.

The square root of 988663 is about 994.3153423336. The cubic root of 988663 is about 99.6206628528.

The spelling of 988663 in words is "nine hundred eighty-eight thousand, six hundred sixty-three".