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1080817 is a prime number
BaseRepresentation
bin100000111110111110001
32000220121021
410013313301
5234041232
635055441
712121033
oct4076761
92026537
101080817
11679041
12441581
132bac4a
14201c53
15165397
hex107df1

1080817 has 2 divisors, whose sum is σ = 1080818. Its totient is φ = 1080816.

The previous prime is 1080811. The next prime is 1080823. The reversal of 1080817 is 7180801.

It is a balanced prime because it is at equal distance from previous prime (1080811) and next prime (1080823).

It can be written as a sum of positive squares in only one way, i.e., 1079521 + 1296 = 1039^2 + 36^2 .

It is a cyclic number.

It is not a de Polignac number, because 1080817 - 215 = 1048049 is a prime.

It is an Ulam number.

It is equal to p84337 and since 1080817 and 84337 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 1080791 and 1080800.

It is not a weakly prime, because it can be changed into another prime (1080811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 540408 + 540409.

It is an arithmetic number, because the mean of its divisors is an integer number (540409).

21080817 is an apocalyptic number.

It is an amenable number.

1080817 is a deficient number, since it is larger than the sum of its proper divisors (1).

1080817 is an equidigital number, since it uses as much as digits as its factorization.

1080817 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 448, while the sum is 25.

The square root of 1080817 is about 1039.6234895384. The cubic root of 1080817 is about 102.6244215824.

The spelling of 1080817 in words is "one million, eighty thousand, eight hundred seventeen".