Search a number
-
+
487057 is a prime number
BaseRepresentation
bin1110110111010010001
3220202010011
41312322101
5111041212
614234521
74065664
oct1667221
9822104
10487057
11302a2a
121b5a41
131408cc
14c96db
15994a7
hex76e91

487057 has 2 divisors, whose sum is σ = 487058. Its totient is φ = 487056.

The previous prime is 487051. The next prime is 487073. The reversal of 487057 is 750784.

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., 410881 + 76176 = 641^2 + 276^2 .

It is a cyclic number.

It is not a de Polignac number, because 487057 - 23 = 487049 is a prime.

It is not a weakly prime, because it can be changed into another prime (487051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 243528 + 243529.

It is an arithmetic number, because the mean of its divisors is an integer number (243529).

2487057 is an apocalyptic number.

It is an amenable number.

487057 is a deficient number, since it is larger than the sum of its proper divisors (1).

487057 is an equidigital number, since it uses as much as digits as its factorization.

487057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7840, while the sum is 31.

The square root of 487057 is about 697.8946911963. The cubic root of 487057 is about 78.6791989833.

The spelling of 487057 in words is "four hundred eighty-seven thousand, fifty-seven".