489782387 has 2 divisors, whose sum is σ = 489782388. Its totient is φ = 489782386.

The previous prime is 489782329. The next prime is 489782417. The reversal of 489782387 is 783287984.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 489782387 - 2¹² = 489778291 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (489782327) 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, 244891193 + 244891194.

It is an arithmetic number, because the mean of its divisors is an integer number (244891194).

Almost surely, 2^489782387 is an apocalyptic number.

489782387 is a deficient number, since it is larger than the sum of its proper divisors (1).

489782387 is an equidigital number, since it uses as much as digits as its factorization.

489782387 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5419008, while the sum is 56.

The square root of 489782387 is about 22131.0276986858. The cubic root of 489782387 is about 788.2567913245.

The spelling of 489782387 in words is "four hundred eighty-nine million, seven hundred eighty-two thousand, three hundred eighty-seven".