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487049 is a prime number
BaseRepresentation
bin1110110111010001001
3220202002212
41312322021
5111041144
614234505
74065653
oct1667211
9822085
10487049
11302a22
121b5a35
131408c4
14c96d3
159949e
hex76e89

487049 has 2 divisors, whose sum is σ = 487050. Its totient is φ = 487048.

The previous prime is 487021. The next prime is 487051. The reversal of 487049 is 940784.

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., 462400 + 24649 = 680^2 + 157^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-487049 is a prime.

Together with 487051, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (487079) 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, 243524 + 243525.

It is an arithmetic number, because the mean of its divisors is an integer number (243525).

2487049 is an apocalyptic number.

It is an amenable number.

487049 is a deficient number, since it is larger than the sum of its proper divisors (1).

487049 is an equidigital number, since it uses as much as digits as its factorization.

487049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 487049 is about 697.8889596490. Note that the first 3 decimals coincide. The cubic root of 487049 is about 78.6787682076.

The spelling of 487049 in words is "four hundred eighty-seven thousand, forty-nine".