989924544 has 112 divisors (see below), whose sum is σ = 3325977600. Its totient is φ = 282832128.

The previous prime is 989924539. The next prime is 989924549. The reversal of 989924544 is 445429989.

989924544 is a `hidden beast` number, since 9 + 8 + 9 + 92 + 4 + 544 = 666.

It is an interprime number because it is at equal distance from previous prime (989924539) and next prime (989924549).

It is a tau number, because it is divible by the number of its divisors (112).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (989924549) 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, 28824 + ... + 53015.

Almost surely, 2^989924544 is an apocalyptic number.

It is an amenable number.

989924544 is an abundant number, since it is smaller than the sum of its proper divisors (2336053056).

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

989924544 is a wasteful number, since it uses less digits than its factorization.

989924544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81867 (or 81851 counting only the distinct ones).

The product of its digits is 3732480, while the sum is 54.

The square root of 989924544 is about 31463.0663477036. The cubic root of 989924544 is about 996.6301716794.

It can be divided in two parts, 9899 and 24544, that added together give a palindrome (34443).

The spelling of 989924544 in words is "nine hundred eighty-nine million, nine hundred twenty-four thousand, five hundred forty-four".