487732657 has 2 divisors, whose sum is σ = 487732658. Its totient is φ = 487732656.

The previous prime is 487732639. The next prime is 487732681. The reversal of 487732657 is 756237784.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 403166241 + 84566416 = 20079^2 + 9196^2 .

It is a cyclic number.

It is not a de Polignac number, because 487732657 - 2⁷ = 487732529 is a prime.

It is a super-3 number, since 3×487732657³ (a number of 27 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 487732657.

It is not a weakly prime, because it can be changed into another prime (487732697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 243866328 + 243866329.

It is an arithmetic number, because the mean of its divisors is an integer number (243866329).

Almost surely, 2^487732657 is an apocalyptic number.

It is an amenable number.

487732657 is a deficient number, since it is larger than the sum of its proper divisors (1).

487732657 is an equidigital number, since it uses as much as digits as its factorization.

487732657 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1975680, while the sum is 49.

The square root of 487732657 is about 22084.6701809196. The cubic root of 487732657 is about 787.1556405543.

The spelling of 487732657 in words is "four hundred eighty-seven million, seven hundred thirty-two thousand, six hundred fifty-seven".