988865488 has 80 divisors (see below), whose sum is σ = 2209233600. Its totient is φ = 424949760.

The previous prime is 988865411. The next prime is 988865489. The reversal of 988865488 is 884568889.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (988865489) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 231048 + ... + 235288.

It is an arithmetic number, because the mean of its divisors is an integer number (27615420).

Almost surely, 2^988865488 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 988865488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1104616800).

988865488 is an abundant number, since it is smaller than the sum of its proper divisors (1220368112).

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

988865488 is a wasteful number, since it uses less digits than its factorization.

988865488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4340 (or 4334 counting only the distinct ones).

The product of its digits is 35389440, while the sum is 64.

The square root of 988865488 is about 31446.2316979316. The cubic root of 988865488 is about 996.2746348888.

The spelling of 988865488 in words is "nine hundred eighty-eight million, eight hundred sixty-five thousand, four hundred eighty-eight".