989503968 has 48 divisors (see below), whose sum is σ = 2604223440. Its totient is φ = 328974336.

The previous prime is 989503967. The next prime is 989504017. The reversal of 989503968 is 869305989.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (989503967) 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, 24096 + ... + 50592.

It is an arithmetic number, because the mean of its divisors is an integer number (54254655).

Almost surely, 2^989503968 is an apocalyptic number.

It is an amenable number.

989503968 is an abundant number, since it is smaller than the sum of its proper divisors (1614719472).

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

989503968 is a wasteful number, since it uses less digits than its factorization.

989503968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26899 (or 26891 counting only the distinct ones).

The product of its (nonzero) digits is 4199040, while the sum is 57.

The square root of 989503968 is about 31456.3819915768. The cubic root of 989503968 is about 996.4890100429.

The spelling of 989503968 in words is "nine hundred eighty-nine million, five hundred three thousand, nine hundred sixty-eight".