487886761 has 2 divisors, whose sum is σ = 487886762. Its totient is φ = 487886760.

The previous prime is 487886687. The next prime is 487886779. The reversal of 487886761 is 167688784.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 253796761 + 234090000 = 15931^2 + 15300^2 .

It is a cyclic number.

It is not a de Polignac number, because 487886761 - 2¹¹ = 487884713 is a prime.

It is a super-2 number, since 2×487886761² = 476066983118142242, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (487386761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 243943380 + 243943381.

It is an arithmetic number, because the mean of its divisors is an integer number (243943381).

Almost surely, 2^487886761 is an apocalyptic number.

It is an amenable number.

487886761 is a deficient number, since it is larger than the sum of its proper divisors (1).

487886761 is an equidigital number, since it uses as much as digits as its factorization.

487886761 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3612672, while the sum is 55.

The square root of 487886761 is about 22088.1588413340. The cubic root of 487886761 is about 787.2385350510.

The spelling of 487886761 in words is "four hundred eighty-seven million, eight hundred eighty-six thousand, seven hundred sixty-one".