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86417 = 103839
BaseRepresentation
bin10101000110010001
311101112122
4111012101
510231132
61504025
7506642
oct250621
9141478
1086417
1159a21
1242015
1330446
14236c9
151a912
hex15191

86417 has 4 divisors (see below), whose sum is σ = 87360. Its totient is φ = 85476.

The previous prime is 86413. The next prime is 86423. The reversal of 86417 is 71468.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 86417 - 22 = 86413 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86413) 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, 317 + ... + 522.

It is an arithmetic number, because the mean of its divisors is an integer number (21840).

286417 is an apocalyptic number.

It is an amenable number.

86417 is a deficient number, since it is larger than the sum of its proper divisors (943).

86417 is a wasteful number, since it uses less digits than its factorization.

86417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 942.

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

The square root of 86417 is about 293.9676852989. The cubic root of 86417 is about 44.2112772628.

The spelling of 86417 in words is "eighty-six thousand, four hundred seventeen".

Divisors: 1 103 839 86417