989829252 has 18 divisors (see below), whose sum is σ = 2502068478. Its totient is φ = 329943072.

The previous prime is 989829251. The next prime is 989829271. The reversal of 989829252 is 252928989.

It can be written as a sum of positive squares in only one way, i.e., 653620356 + 336208896 = 25566^2 + 18336^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×989829252² = 1959523896229759008, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (989829251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13747593 + ... + 13747664.

Almost surely, 2^989829252 is an apocalyptic number.

It is an amenable number.

989829252 is an abundant number, since it is smaller than the sum of its proper divisors (1512239226).

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

989829252 is a wasteful number, since it uses less digits than its factorization.

989829252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27495267 (or 27495262 counting only the distinct ones).

The product of its digits is 1866240, while the sum is 54.

The square root of 989829252 is about 31461.5519642627. The cubic root of 989829252 is about 996.5981914878.

The spelling of 989829252 in words is "nine hundred eighty-nine million, eight hundred twenty-nine thousand, two hundred fifty-two".