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84671 = 227373
BaseRepresentation
bin10100101010111111
311022010222
4110222333
510202141
61451555
7501566
oct245277
9138128
1084671
1158684
1240bbb
132c702
1422bdd
151a14b
hex14abf

84671 has 4 divisors (see below), whose sum is σ = 85272. Its totient is φ = 84072.

The previous prime is 84659. The next prime is 84673. The reversal of 84671 is 17648.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-84671 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14 and base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 84671.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84673) 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 in 3 ways as a sum of consecutive naturals, for example, 41 + ... + 413.

It is an arithmetic number, because the mean of its divisors is an integer number (21318).

284671 is an apocalyptic number.

84671 is a deficient number, since it is larger than the sum of its proper divisors (601).

84671 is a wasteful number, since it uses less digits than its factorization.

84671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600.

The product of its digits is 1344, while the sum is 26.

The square root of 84671 is about 290.9828173621. The cubic root of 84671 is about 43.9114956499.

The spelling of 84671 in words is "eighty-four thousand, six hundred seventy-one".

Divisors: 1 227 373 84671