989308964 has 24 divisors (see below), whose sum is σ = 1979499648. Its totient is φ = 423800640.

The previous prime is 989308963. The next prime is 989308973. The reversal of 989308964 is 469803989.

It is not an unprimeable number, because it can be changed into a prime (989308963) 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, 69392 + ... + 82424.

It is an arithmetic number, because the mean of its divisors is an integer number (82479152).

Almost surely, 2^989308964 is an apocalyptic number.

It is an amenable number.

989308964 is an abundant number, since it is smaller than the sum of its proper divisors (990190684).

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

989308964 is a wasteful number, since it uses less digits than its factorization.

989308964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15755 (or 15753 counting only the distinct ones).

The product of its (nonzero) digits is 3359232, while the sum is 56.

The square root of 989308964 is about 31453.2822452602. The cubic root of 989308964 is about 996.4235455558.

The spelling of 989308964 in words is "nine hundred eighty-nine million, three hundred eight thousand, nine hundred sixty-four".