989696413 has 2 divisors, whose sum is σ = 989696414. Its totient is φ = 989696412.

The previous prime is 989696341. The next prime is 989696419. The reversal of 989696413 is 314696989.

Together with previous prime (989696341) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 912221209 + 77475204 = 30203^2 + 8802^2 .

It is an emirp because it is prime and its reverse (314696989) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-989696413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (989696419) 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, 494848206 + 494848207.

It is an arithmetic number, because the mean of its divisors is an integer number (494848207).

Almost surely, 2^989696413 is an apocalyptic number.

It is an amenable number.

989696413 is a deficient number, since it is larger than the sum of its proper divisors (1).

989696413 is an equidigital number, since it uses as much as digits as its factorization.

989696413 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2519424, while the sum is 55.

The square root of 989696413 is about 31459.4407610816. The cubic root of 989696413 is about 996.5536070204.

The spelling of 989696413 in words is "nine hundred eighty-nine million, six hundred ninety-six thousand, four hundred thirteen".