489470867 has 2 divisors, whose sum is σ = 489470868. Its totient is φ = 489470866.

The previous prime is 489470819. The next prime is 489470869. The reversal of 489470867 is 768074984.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-489470867 is a prime.

Together with 489470869, 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 (489470869) 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, 244735433 + 244735434.

It is an arithmetic number, because the mean of its divisors is an integer number (244735434).

Almost surely, 2^489470867 is an apocalyptic number.

489470867 is a deficient number, since it is larger than the sum of its proper divisors (1).

489470867 is an equidigital number, since it uses as much as digits as its factorization.

489470867 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2709504, while the sum is 53.

The square root of 489470867 is about 22123.9884966522. The cubic root of 489470867 is about 788.0896355687.

The spelling of 489470867 in words is "four hundred eighty-nine million, four hundred seventy thousand, eight hundred sixty-seven".