989766941 has 2 divisors, whose sum is σ = 989766942. Its totient is φ = 989766940.

The previous prime is 989766901. The next prime is 989766961. The reversal of 989766941 is 149667989.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 891261316 + 98505625 = 29854^2 + 9925^2 .

It is a cyclic number.

It is not a de Polignac number, because 989766941 - 2¹⁸ = 989504797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (989766901) 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, 494883470 + 494883471.

It is an arithmetic number, because the mean of its divisors is an integer number (494883471).

Almost surely, 2^989766941 is an apocalyptic number.

It is an amenable number.

989766941 is a deficient number, since it is larger than the sum of its proper divisors (1).

989766941 is an equidigital number, since it uses as much as digits as its factorization.

989766941 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5878656, while the sum is 59.

The square root of 989766941 is about 31460.5616764863. The cubic root of 989766941 is about 996.5772786778.

The spelling of 989766941 in words is "nine hundred eighty-nine million, seven hundred sixty-six thousand, nine hundred forty-one".