992389243 has 2 divisors, whose sum is σ = 992389244. Its totient is φ = 992389242.

The previous prime is 992389219. The next prime is 992389259. The reversal of 992389243 is 342983299.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 992389243 - 2²¹ = 990292091 is a prime.

It is a super-2 number, since 2×992389243² = 1969672819244226098, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (992389213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 496194621 + 496194622.

It is an arithmetic number, because the mean of its divisors is an integer number (496194622).

Almost surely, 2^992389243 is an apocalyptic number.

992389243 is a deficient number, since it is larger than the sum of its proper divisors (1).

992389243 is an equidigital number, since it uses as much as digits as its factorization.

992389243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 839808, while the sum is 49.

The square root of 992389243 is about 31502.2101288148. The cubic root of 992389243 is about 997.4566176906.

The spelling of 992389243 in words is "nine hundred ninety-two million, three hundred eighty-nine thousand, two hundred forty-three".