489363977 has 2 divisors, whose sum is σ = 489363978. Its totient is φ = 489363976.

The previous prime is 489363967. The next prime is 489363997. The reversal of 489363977 is 779363984.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 355360201 + 134003776 = 18851^2 + 11576^2 .

It is a cyclic number.

It is not a de Polignac number, because 489363977 - 2¹⁰ = 489362953 is a prime.

It is not a weakly prime, because it can be changed into another prime (489363967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 244681988 + 244681989.

It is an arithmetic number, because the mean of its divisors is an integer number (244681989).

Almost surely, 2^489363977 is an apocalyptic number.

It is an amenable number.

489363977 is a deficient number, since it is larger than the sum of its proper divisors (1).

489363977 is an equidigital number, since it uses as much as digits as its factorization.

489363977 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6858432, while the sum is 56.

The square root of 489363977 is about 22121.5726610926. The cubic root of 489363977 is about 788.0322640684.

The spelling of 489363977 in words is "four hundred eighty-nine million, three hundred sixty-three thousand, nine hundred seventy-seven".