487973009 has 2 divisors, whose sum is σ = 487973010. Its totient is φ = 487973008.

The previous prime is 487972973. The next prime is 487973051. The reversal of 487973009 is 900379784.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 486643600 + 1329409 = 22060^2 + 1153^2 .

It is a cyclic number.

It is not a de Polignac number, because 487973009 - 2¹⁶ = 487907473 is a prime.

It is not a weakly prime, because it can be changed into another prime (487973069) 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, 243986504 + 243986505.

It is an arithmetic number, because the mean of its divisors is an integer number (243986505).

Almost surely, 2^487973009 is an apocalyptic number.

It is an amenable number.

487973009 is a deficient number, since it is larger than the sum of its proper divisors (1).

487973009 is an equidigital number, since it uses as much as digits as its factorization.

487973009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 381024, while the sum is 47.

The square root of 487973009 is about 22090.1111133466. Note that the first 5 decimals coincide. The cubic root of 487973009 is about 787.2849213261.

The spelling of 487973009 in words is "four hundred eighty-seven million, nine hundred seventy-three thousand, nine".