1000228979 has 2 divisors, whose sum is σ = 1000228980. Its totient is φ = 1000228978.

The previous prime is 1000228973. The next prime is 1000229011. The reversal of 1000228979 is 9798220001.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1000228979 - 2⁴ = 1000228963 is a prime.

It is not a weakly prime, because it can be changed into another prime (1000228973) 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, 500114489 + 500114490.

It is an arithmetic number, because the mean of its divisors is an integer number (500114490).

Almost surely, 2^1000228979 is an apocalyptic number.

1000228979 is a deficient number, since it is larger than the sum of its proper divisors (1).

1000228979 is an equidigital number, since it uses as much as digits as its factorization.

1000228979 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 38.

The square root of 1000228979 is about 31626.3968703360. The cubic root of 1000228979 is about 1000.0763205084.

The spelling of 1000228979 in words is "one billion, two hundred twenty-eight thousand, nine hundred seventy-nine".