989709522 has 16 divisors (see below), whose sum is σ = 2032917312. Its totient is φ = 320986800.

The previous prime is 989709521. The next prime is 989709547. The reversal of 989709522 is 225907989.

It is not an unprimeable number, because it can be changed into a prime (989709521) 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, 2228854 + ... + 2229297.

It is an arithmetic number, because the mean of its divisors is an integer number (127057332).

Almost surely, 2^989709522 is an apocalyptic number.

989709522 is an abundant number, since it is smaller than the sum of its proper divisors (1043207790).

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

989709522 is a wasteful number, since it uses less digits than its factorization.

989709522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4458193.

The product of its (nonzero) digits is 816480, while the sum is 51.

The square root of 989709522 is about 31459.6491080241. The cubic root of 989709522 is about 996.5580069433.

The spelling of 989709522 in words is "nine hundred eighty-nine million, seven hundred nine thousand, five hundred twenty-two".