989744043 has 16 divisors (see below), whose sum is σ = 1356423680. Its totient is φ = 641475936.

The previous prime is 989744009. The next prime is 989744051. The reversal of 989744043 is 340447989.

It is not a de Polignac number, because 989744043 - 2⁸ = 989743787 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 989743983 and 989744001.

It is not an unprimeable number, because it can be changed into a prime (989744053) 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, 172446 + ... + 178092.

It is an arithmetic number, because the mean of its divisors is an integer number (84776480).

Almost surely, 2^989744043 is an apocalyptic number.

989744043 is a deficient number, since it is larger than the sum of its proper divisors (366679637).

989744043 is a wasteful number, since it uses less digits than its factorization.

989744043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7266.

The product of its (nonzero) digits is 870912, while the sum is 48.

The square root of 989744043 is about 31460.1977584376. The cubic root of 989744043 is about 996.5695934334.

The spelling of 989744043 in words is "nine hundred eighty-nine million, seven hundred forty-four thousand, forty-three".