989160791 has 2 divisors, whose sum is σ = 989160792. Its totient is φ = 989160790.

The previous prime is 989160779. The next prime is 989160829. The reversal of 989160791 is 197061989.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-989160791 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (989169791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 494580395 + 494580396.

It is an arithmetic number, because the mean of its divisors is an integer number (494580396).

Almost surely, 2^989160791 is an apocalyptic number.

989160791 is a deficient number, since it is larger than the sum of its proper divisors (1).

989160791 is an equidigital number, since it uses as much as digits as its factorization.

989160791 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 244944, while the sum is 50.

The square root of 989160791 is about 31450.9267113069. The cubic root of 989160791 is about 996.3737968783.

The spelling of 989160791 in words is "nine hundred eighty-nine million, one hundred sixty thousand, seven hundred ninety-one".