988764 has 48 divisors (see below), whose sum is σ = 2688000. Its totient is φ = 277056.

The previous prime is 988763. The next prime is 988783. The reversal of 988764 is 467889.

It is a happy number.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (42).

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 (988763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6562 + ... + 6710.

It is an arithmetic number, because the mean of its divisors is an integer number (56000).

2⁹⁸⁸⁷⁶⁴ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 988764, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1344000).

988764 is an abundant number, since it is smaller than the sum of its proper divisors (1699236).

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

988764 is a wasteful number, since it uses less digits than its factorization.

988764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242 (or 240 counting only the distinct ones).

The product of its digits is 96768, while the sum is 42.

The square root of 988764 is about 994.3661297530. The cubic root of 988764 is about 99.6240550921.

The spelling of 988764 in words is "nine hundred eighty-eight thousand, seven hundred sixty-four".