992098909 has 2 divisors, whose sum is σ = 992098910. Its totient is φ = 992098908.

The previous prime is 992098907. The next prime is 992098979. The reversal of 992098909 is 909890299.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 541725625 + 450373284 = 23275^2 + 21222^2 .

It is an emirp because it is prime and its reverse (909890299) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 992098909 - 2¹ = 992098907 is a prime.

Together with 992098907, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 992098909.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (992098901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 496049454 + 496049455.

It is an arithmetic number, because the mean of its divisors is an integer number (496049455).

Almost surely, 2^992098909 is an apocalyptic number.

It is an amenable number.

992098909 is a deficient number, since it is larger than the sum of its proper divisors (1).

992098909 is an equidigital number, since it uses as much as digits as its factorization.

992098909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 944784, while the sum is 55.

The square root of 992098909 is about 31497.6016388550. The cubic root of 992098909 is about 997.3593360317.

The spelling of 992098909 in words is "nine hundred ninety-two million, ninety-eight thousand, nine hundred nine".