989961622 has 16 divisors (see below), whose sum is σ = 1599861312. Its totient is φ = 456707520.

The previous prime is 989961601. The next prime is 989961641. The reversal of 989961622 is 226169989.

989961622 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 989961622.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65347 + ... + 79057.

It is an arithmetic number, because the mean of its divisors is an integer number (99991332).

Almost surely, 2^989961622 is an apocalyptic number.

989961622 is a deficient number, since it is larger than the sum of its proper divisors (609899690).

989961622 is a wasteful number, since it uses less digits than its factorization.

989961622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16503.

The product of its digits is 839808, while the sum is 52.

The square root of 989961622 is about 31463.6555727398. The cubic root of 989961622 is about 996.6426145780.

The spelling of 989961622 in words is "nine hundred eighty-nine million, nine hundred sixty-one thousand, six hundred twenty-two".