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868617 = 3353607
BaseRepresentation
bin11010100000100001001
31122010112000
43110010021
5210243432
630341213
710245261
oct3240411
91563460
10868617
11543672
1235a809
13245499
141887a1
1512257c
hexd4109

868617 has 16 divisors (see below), whose sum is σ = 1313280. Its totient is φ = 567216.

The previous prime is 868613. The next prime is 868639. The reversal of 868617 is 716868.

It is not a de Polignac number, because 868617 - 22 = 868613 is a prime.

It is a super-3 number, since 3×8686173 = 1966102834119123339, which contains 333 as substring.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (868613) 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 15 ways as a sum of consecutive naturals, for example, 1128 + ... + 1734.

It is an arithmetic number, because the mean of its divisors is an integer number (82080).

2868617 is an apocalyptic number.

It is an amenable number.

868617 is a deficient number, since it is larger than the sum of its proper divisors (444663).

868617 is a wasteful number, since it uses less digits than its factorization.

868617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 669 (or 663 counting only the distinct ones).

The product of its digits is 16128, while the sum is 36.

The square root of 868617 is about 931.9962446276. The cubic root of 868617 is about 95.4134153042.

It can be divided in two parts, 86861 and 7, that added together give a palindrome (86868).

The spelling of 868617 in words is "eight hundred sixty-eight thousand, six hundred seventeen".

Divisors: 1 3 9 27 53 159 477 607 1431 1821 5463 16389 32171 96513 289539 868617