989563356 has 36 divisors (see below), whose sum is σ = 2502400992. Its totient is φ = 329721984.

The previous prime is 989563297. The next prime is 989563397. The reversal of 989563356 is 653365989.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 132925 + ... + 140171.

Almost surely, 2^989563356 is an apocalyptic number.

It is an amenable number.

989563356 is an abundant number, since it is smaller than the sum of its proper divisors (1512837636).

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

989563356 is a wasteful number, since it uses less digits than its factorization.

989563356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11050 (or 11045 counting only the distinct ones).

The product of its digits is 5248800, while the sum is 54.

The square root of 989563356 is about 31457.3259511993. The cubic root of 989563356 is about 996.5089453867.

The spelling of 989563356 in words is "nine hundred eighty-nine million, five hundred sixty-three thousand, three hundred fifty-six".