989312365 has 16 divisors (see below), whose sum is σ = 1260775152. Its totient is φ = 742662144.

The previous prime is 989312333. The next prime is 989312369. The reversal of 989312365 is 563213989.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 49154121 + 940158244 = 7011^2 + 30662^2 .

It is a cyclic number.

It is not a de Polignac number, because 989312365 - 2⁵ = 989312333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (989312369) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11377 + ... + 45913.

It is an arithmetic number, because the mean of its divisors is an integer number (78798447).

Almost surely, 2^989312365 is an apocalyptic number.

It is an amenable number.

989312365 is a deficient number, since it is larger than the sum of its proper divisors (271462787).

989312365 is a wasteful number, since it uses less digits than its factorization.

989312365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34896.

The product of its digits is 349920, while the sum is 46.

The square root of 989312365 is about 31453.3363095237. The cubic root of 989312365 is about 996.4246873739.

The spelling of 989312365 in words is "nine hundred eighty-nine million, three hundred twelve thousand, three hundred sixty-five".