989021075 has 48 divisors (see below), whose sum is σ = 1477673280. Its totient is φ = 642270720.

The previous prime is 989021057. The next prime is 989021083. The reversal of 989021075 is 570120989.

It is not a de Polignac number, because 989021075 - 2¹² = 989016979 is a prime.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 267137 + ... + 270813.

It is an arithmetic number, because the mean of its divisors is an integer number (30784860).

Almost surely, 2^989021075 is an apocalyptic number.

989021075 is a deficient number, since it is larger than the sum of its proper divisors (488652205).

989021075 is a wasteful number, since it uses less digits than its factorization.

989021075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3776 (or 3771 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 41.

The square root of 989021075 is about 31448.7054582538. The cubic root of 989021075 is about 996.3268830643.

The spelling of 989021075 in words is "nine hundred eighty-nine million, twenty-one thousand, seventy-five".