989207916 has 24 divisors (see below), whose sum is σ = 2309038704. Its totient is φ = 329609280.

The previous prime is 989207911. The next prime is 989207929. The reversal of 989207916 is 619702989.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (989207911) 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, 19926 + ... + 48738.

It is an arithmetic number, because the mean of its divisors is an integer number (96209946).

Almost surely, 2^989207916 is an apocalyptic number.

It is an amenable number.

989207916 is an abundant number, since it is smaller than the sum of its proper divisors (1319830788).

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

989207916 is a wasteful number, since it uses less digits than its factorization.

989207916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31681 (or 31679 counting only the distinct ones).

The product of its (nonzero) digits is 489888, while the sum is 51.

The square root of 989207916 is about 31451.6758853960. The cubic root of 989207916 is about 996.3896195063.

The spelling of 989207916 in words is "nine hundred eighty-nine million, two hundred seven thousand, nine hundred sixteen".