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85417 = 229373
BaseRepresentation
bin10100110110101001
311100011121
4110312221
510213132
61455241
7504013
oct246651
9140147
1085417
11591a2
1241521
132cb57
14231b3
151a497
hex14da9

85417 has 4 divisors (see below), whose sum is σ = 86020. Its totient is φ = 84816.

The previous prime is 85411. The next prime is 85427. The reversal of 85417 is 71458.

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, and also an emirpimes, since its reverse is a distinct semiprime: 71458 = 235729.

It can be written as a sum of positive squares in 2 ways, for example, as 65536 + 19881 = 256^2 + 141^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-85417 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 85391 and 85400.

It is not an unprimeable number, because it can be changed into a prime (85411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43 + ... + 415.

It is an arithmetic number, because the mean of its divisors is an integer number (21505).

285417 is an apocalyptic number.

It is an amenable number.

85417 is a deficient number, since it is larger than the sum of its proper divisors (603).

85417 is a wasteful number, since it uses less digits than its factorization.

85417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 602.

The product of its digits is 1120, while the sum is 25.

The square root of 85417 is about 292.2618688779. The cubic root of 85417 is about 44.0400805585.

The spelling of 85417 in words is "eighty-five thousand, four hundred seventeen".

Divisors: 1 229 373 85417