989725233 has 32 divisors (see below), whose sum is σ = 1541431296. Its totient is φ = 553146048.

The previous prime is 989725229. The next prime is 989725271. The reversal of 989725233 is 332527989.

It is a happy number.

989725233 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 989725233 - 2² = 989725229 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (989725133) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 407260 + ... + 409682.

It is an arithmetic number, because the mean of its divisors is an integer number (48169728).

Almost surely, 2^989725233 is an apocalyptic number.

It is an amenable number.

989725233 is a deficient number, since it is larger than the sum of its proper divisors (551706063).

989725233 is a wasteful number, since it uses less digits than its factorization.

989725233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2853.

The product of its digits is 816480, while the sum is 48.

The square root of 989725233 is about 31459.8988078474. The cubic root of 989725233 is about 996.5632801538.

The spelling of 989725233 in words is "nine hundred eighty-nine million, seven hundred twenty-five thousand, two hundred thirty-three".