989080693 has 2 divisors, whose sum is σ = 989080694. Its totient is φ = 989080692.

The previous prime is 989080681. The next prime is 989080721. The reversal of 989080693 is 396080989.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 935014084 + 54066609 = 30578^2 + 7353^2 .

It is a cyclic number.

It is not a de Polignac number, because 989080693 - 2²¹ = 986983541 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 989080693.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (989080613) 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 as a sum of consecutive naturals, namely, 494540346 + 494540347.

It is an arithmetic number, because the mean of its divisors is an integer number (494540347).

Almost surely, 2^989080693 is an apocalyptic number.

It is an amenable number.

989080693 is a deficient number, since it is larger than the sum of its proper divisors (1).

989080693 is an equidigital number, since it uses as much as digits as its factorization.

989080693 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 839808, while the sum is 52.

The square root of 989080693 is about 31449.6533049253. The cubic root of 989080693 is about 996.3469021263.

The spelling of 989080693 in words is "nine hundred eighty-nine million, eighty thousand, six hundred ninety-three".