992281 has 2 divisors, whose sum is σ = 992282. Its totient is φ = 992280.

The previous prime is 992269. The next prime is 992309. The reversal of 992281 is 182299.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 968256 + 24025 = 984^2 + 155^2 .

It is a cyclic number.

It is not a de Polignac number, because 992281 - 2⁵ = 992249 is a prime.

It is a super-2 number, since 2×992281² = 1969243165922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (992231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 496140 + 496141.

It is an arithmetic number, because the mean of its divisors is an integer number (496141).

2⁹⁹²²⁸¹ is an apocalyptic number.

It is an amenable number.

992281 is a deficient number, since it is larger than the sum of its proper divisors (1).

992281 is an equidigital number, since it uses as much as digits as its factorization.

992281 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2592, while the sum is 31.

The square root of 992281 is about 996.1330232454. The cubic root of 992281 is about 99.7420351134.

The spelling of 992281 in words is "nine hundred ninety-two thousand, two hundred eighty-one".