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84641 = 531597
BaseRepresentation
bin10100101010100001
311022002212
4110222201
510202031
61451505
7501524
oct245241
9138085
1084641
1158657
1240b95
132c6ab
1422bbb
151a12b
hex14aa1

84641 has 4 divisors (see below), whose sum is σ = 86292. Its totient is φ = 82992.

The previous prime is 84631. The next prime is 84649. The reversal of 84641 is 14648.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 38416 + 46225 = 196^2 + 215^2 .

It is a cyclic number.

It is not a de Polignac number, because 84641 - 210 = 83617 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 14.

It is a zygodrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (84649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 746 + ... + 851.

It is an arithmetic number, because the mean of its divisors is an integer number (21573).

284641 is an apocalyptic number.

It is an amenable number.

84641 is a deficient number, since it is larger than the sum of its proper divisors (1651).

84641 is a wasteful number, since it uses less digits than its factorization.

84641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1650.

The product of its digits is 768, while the sum is 23.

The square root of 84641 is about 290.9312633596. The cubic root of 84641 is about 43.9063089056.

It can be divided in two parts, 8 and 4641, that multiplied together give a triangular number (37128 = T272).

The spelling of 84641 in words is "eighty-four thousand, six hundred forty-one".

Divisors: 1 53 1597 84641