489777047 has 2 divisors, whose sum is σ = 489777048. Its totient is φ = 489777046.

The previous prime is 489777007. The next prime is 489777049. The reversal of 489777047 is 740777984.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 489777047 - 2¹⁶ = 489711511 is a prime.

Together with 489777049, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 489777047.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (489777049) 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, 244888523 + 244888524.

It is an arithmetic number, because the mean of its divisors is an integer number (244888524).

Almost surely, 2^489777047 is an apocalyptic number.

489777047 is a deficient number, since it is larger than the sum of its proper divisors (1).

489777047 is an equidigital number, since it uses as much as digits as its factorization.

489777047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2765952, while the sum is 53.

The square root of 489777047 is about 22130.9070532592. The cubic root of 489777047 is about 788.2539265784.

The spelling of 489777047 in words is "four hundred eighty-nine million, seven hundred seventy-seven thousand, forty-seven".