989543948 has 24 divisors (see below), whose sum is σ = 1752181200. Its totient is φ = 488936448.

The previous prime is 989543941. The next prime is 989543953. The reversal of 989543948 is 849345989.

It is not an unprimeable number, because it can be changed into a prime (989543941) 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, 331808 + ... + 334776.

It is an arithmetic number, because the mean of its divisors is an integer number (73007550).

Almost surely, 2^989543948 is an apocalyptic number.

It is an amenable number.

989543948 is a deficient number, since it is larger than the sum of its proper divisors (762637252).

989543948 is a wasteful number, since it uses less digits than its factorization.

989543948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3929 (or 3927 counting only the distinct ones).

The product of its digits is 11197440, while the sum is 59.

The square root of 989543948 is about 31457.0174682852. The cubic root of 989543948 is about 996.5024306036.

The spelling of 989543948 in words is "nine hundred eighty-nine million, five hundred forty-three thousand, nine hundred forty-eight".