284461979 has 2 divisors, whose sum is σ = 284461980. Its totient is φ = 284461978.

The previous prime is 284461949. The next prime is 284461981. The reversal of 284461979 is 979164482.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 284461979 - 2¹⁶ = 284396443 is a prime.

It is a Sophie Germain prime.

Together with 284461981, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (284461949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 142230989 + 142230990.

It is an arithmetic number, because the mean of its divisors is an integer number (142230990).

Almost surely, 2^284461979 is an apocalyptic number.

284461979 is a deficient number, since it is larger than the sum of its proper divisors (1).

284461979 is an equidigital number, since it uses as much as digits as its factorization.

284461979 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 870912, while the sum is 50.

The square root of 284461979 is about 16866.0006818451. Note that the first 3 decimals coincide. The cubic root of 284461979 is about 657.6700666061.

The spelling of 284461979 in words is "two hundred eighty-four million, four hundred sixty-one thousand, nine hundred seventy-nine".