489810863 has 2 divisors, whose sum is σ = 489810864. Its totient is φ = 489810862.

The previous prime is 489810809. The next prime is 489810869. The reversal of 489810863 is 368018984.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 489810863 - 2⁶ = 489810799 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (489810869) 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, 244905431 + 244905432.

It is an arithmetic number, because the mean of its divisors is an integer number (244905432).

Almost surely, 2^489810863 is an apocalyptic number.

489810863 is a deficient number, since it is larger than the sum of its proper divisors (1).

489810863 is an equidigital number, since it uses as much as digits as its factorization.

489810863 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 331776, while the sum is 47.

The square root of 489810863 is about 22131.6710394855. The cubic root of 489810863 is about 788.2720674730.

The spelling of 489810863 in words is "four hundred eighty-nine million, eight hundred ten thousand, eight hundred sixty-three".