487925209 has 2 divisors, whose sum is σ = 487925210. Its totient is φ = 487925208.

The previous prime is 487925173. The next prime is 487925219. The reversal of 487925209 is 902529784.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 461175625 + 26749584 = 21475^2 + 5172^2 .

It is a cyclic number.

It is not a de Polignac number, because 487925209 - 2¹⁵ = 487892441 is a prime.

It is not a weakly prime, because it can be changed into another prime (487925219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 243962604 + 243962605.

It is an arithmetic number, because the mean of its divisors is an integer number (243962605).

Almost surely, 2^487925209 is an apocalyptic number.

It is an amenable number.

487925209 is a deficient number, since it is larger than the sum of its proper divisors (1).

487925209 is an equidigital number, since it uses as much as digits as its factorization.

487925209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 362880, while the sum is 46.

The square root of 487925209 is about 22089.0291547637. The cubic root of 487925209 is about 787.2592139971.

The spelling of 487925209 in words is "four hundred eighty-seven million, nine hundred twenty-five thousand, two hundred nine".