992047321 has 2 divisors, whose sum is σ = 992047322. Its totient is φ = 992047320.

The previous prime is 992047313. The next prime is 992047349. The reversal of 992047321 is 123740299.

992047321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 805424400 + 186622921 = 28380^2 + 13661^2 .

It is a cyclic number.

It is not a de Polignac number, because 992047321 - 2³ = 992047313 is a prime.

It is not a weakly prime, because it can be changed into another prime (992041321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 496023660 + 496023661.

It is an arithmetic number, because the mean of its divisors is an integer number (496023661).

Almost surely, 2^992047321 is an apocalyptic number.

It is an amenable number.

992047321 is a deficient number, since it is larger than the sum of its proper divisors (1).

992047321 is an equidigital number, since it uses as much as digits as its factorization.

992047321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 992047321 is about 31496.7827087149. The cubic root of 992047321 is about 997.3420485533.

The spelling of 992047321 in words is "nine hundred ninety-two million, forty-seven thousand, three hundred twenty-one".