489304247 has 2 divisors, whose sum is σ = 489304248. Its totient is φ = 489304246.

The previous prime is 489304223. The next prime is 489304253. The reversal of 489304247 is 742403984.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-489304247 is a prime.

It is a super-2 number, since 2×489304247² = 478837292264474018, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (489304547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 244652123 + 244652124.

It is an arithmetic number, because the mean of its divisors is an integer number (244652124).

Almost surely, 2^489304247 is an apocalyptic number.

489304247 is a deficient number, since it is larger than the sum of its proper divisors (1).

489304247 is an equidigital number, since it uses as much as digits as its factorization.

489304247 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 193536, while the sum is 41.

The square root of 489304247 is about 22120.2225802545. Note that the first 3 decimals coincide. The cubic root of 489304247 is about 788.0002013063. Note that the first 3 decimals are identical.

The spelling of 489304247 in words is "four hundred eighty-nine million, three hundred four thousand, two hundred forty-seven".