989621422 has 32 divisors (see below), whose sum is σ = 1600790400. Its totient is φ = 457423200.

The previous prime is 989621417. The next prime is 989621429. The reversal of 989621422 is 224126989.

It is a happy number.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (989621429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 302029 + ... + 305287.

It is an arithmetic number, because the mean of its divisors is an integer number (50024700).

Almost surely, 2^989621422 is an apocalyptic number.

989621422 is a deficient number, since it is larger than the sum of its proper divisors (611168978).

989621422 is a wasteful number, since it uses less digits than its factorization.

989621422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3472.

The product of its digits is 124416, while the sum is 43.

The square root of 989621422 is about 31458.2488705268. The cubic root of 989621422 is about 996.5284361909.

The spelling of 989621422 in words is "nine hundred eighty-nine million, six hundred twenty-one thousand, four hundred twenty-two".