487927261 has 2 divisors, whose sum is σ = 487927262. Its totient is φ = 487927260.

The previous prime is 487927211. The next prime is 487927301. The reversal of 487927261 is 162729784.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 475501636 + 12425625 = 21806^2 + 3525^2 .

It is a cyclic number.

It is not a de Polignac number, because 487927261 - 2¹⁵ = 487894493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (487927211) 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, 243963630 + 243963631.

It is an arithmetic number, because the mean of its divisors is an integer number (243963631).

Almost surely, 2^487927261 is an apocalyptic number.

It is an amenable number.

487927261 is a deficient number, since it is larger than the sum of its proper divisors (1).

487927261 is an equidigital number, since it uses as much as digits as its factorization.

487927261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 338688, while the sum is 46.

The square root of 487927261 is about 22089.0756031121. The cubic root of 487927261 is about 787.2603176182.

The spelling of 487927261 in words is "four hundred eighty-seven million, nine hundred twenty-seven thousand, two hundred sixty-one".