992942609 has 2 divisors, whose sum is σ = 992942610. Its totient is φ = 992942608.

The previous prime is 992942593. The next prime is 992942611. The reversal of 992942609 is 906249299.

992942609 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 942490000 + 50452609 = 30700^2 + 7103^2 .

It is an emirp because it is prime and its reverse (906249299) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 992942609 - 2⁴ = 992942593 is a prime.

Together with 992942611, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (992942309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 496471304 + 496471305.

It is an arithmetic number, because the mean of its divisors is an integer number (496471305).

Almost surely, 2^992942609 is an apocalyptic number.

It is an amenable number.

992942609 is a deficient number, since it is larger than the sum of its proper divisors (1).

992942609 is an equidigital number, since it uses as much as digits as its factorization.

992942609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 629856, while the sum is 50.

The square root of 992942609 is about 31510.9918758518. The cubic root of 992942609 is about 997.6419804475.

The spelling of 992942609 in words is "nine hundred ninety-two million, nine hundred forty-two thousand, six hundred nine".