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487887 = 3162629
BaseRepresentation
bin1110111000111001111
3220210020220
41313013033
5111103022
614242423
74101261
oct1670717
9823226
10487887
11303614
121b6413
131410ba
14c9b31
159985c
hex771cf

487887 has 4 divisors (see below), whose sum is σ = 650520. Its totient is φ = 325256.

The previous prime is 487873. The next prime is 487889. The reversal of 487887 is 788784.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 487887 - 214 = 471503 is a prime.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (487889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81312 + ... + 81317.

It is an arithmetic number, because the mean of its divisors is an integer number (162630).

2487887 is an apocalyptic number.

487887 is a deficient number, since it is larger than the sum of its proper divisors (162633).

487887 is a wasteful number, since it uses less digits than its factorization.

487887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162632.

The product of its digits is 100352, while the sum is 42.

The square root of 487887 is about 698.4890836656. The cubic root of 487887 is about 78.7238663599.

The spelling of 487887 in words is "four hundred eighty-seven thousand, eight hundred eighty-seven".

Divisors: 1 3 162629 487887