489624647 has 2 divisors, whose sum is σ = 489624648. Its totient is φ = 489624646.

The previous prime is 489624601. The next prime is 489624649. The reversal of 489624647 is 746426984.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 489624647 - 2¹⁰ = 489623623 is a prime.

Together with 489624649, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 489624595 and 489624604.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (489624649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 244812323 + 244812324.

It is an arithmetic number, because the mean of its divisors is an integer number (244812324).

Almost surely, 2^489624647 is an apocalyptic number.

489624647 is a deficient number, since it is larger than the sum of its proper divisors (1).

489624647 is an equidigital number, since it uses as much as digits as its factorization.

489624647 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2322432, while the sum is 50.

The square root of 489624647 is about 22127.4636368473. The cubic root of 489624647 is about 788.1721598771.

The spelling of 489624647 in words is "four hundred eighty-nine million, six hundred twenty-four thousand, six hundred forty-seven".