487040761 has 9 divisors (see below), whose sum is σ = 505078093. Its totient is φ = 469628320.

The previous prime is 487040717. The next prime is 487040779. The reversal of 487040761 is 167040784.

The square root of 487040761 is 22069.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 206813161 + 280227600 = 14381^2 + 16740^2 .

It is not a de Polignac number, because 487040761 - 2¹³ = 487032569 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 487040761.

It is not an unprimeable number, because it can be changed into a prime (487040261) 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 in 8 ways as a sum of consecutive naturals, for example, 639621 + ... + 640381.

Almost surely, 2^487040761 is an apocalyptic number.

487040761 is the 22069-th square number.

487040761 is the 11035-th centered octagonal number.

It is an amenable number.

487040761 is a deficient number, since it is larger than the sum of its proper divisors (18037332).

487040761 is an frugal number, since it uses more digits than its factorization.

487040761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1580 (or 790 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 37.

The cubic root of 487040761 is about 786.7832455744.

The spelling of 487040761 in words is "four hundred eighty-seven million, forty thousand, seven hundred sixty-one".