992279887 has 2 divisors, whose sum is σ = 992279888. Its totient is φ = 992279886.

The previous prime is 992279867. The next prime is 992279927. The reversal of 992279887 is 788972299.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 992279887 - 2¹⁹ = 991755599 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (992279867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 496139943 + 496139944.

It is an arithmetic number, because the mean of its divisors is an integer number (496139944).

Almost surely, 2^992279887 is an apocalyptic number.

992279887 is a deficient number, since it is larger than the sum of its proper divisors (1).

992279887 is an equidigital number, since it uses as much as digits as its factorization.

992279887 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9144576, while the sum is 61.

The square root of 992279887 is about 31500.4743932532. The cubic root of 992279887 is about 997.4199782122.

The spelling of 992279887 in words is "nine hundred ninety-two million, two hundred seventy-nine thousand, eight hundred eighty-seven".