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2065897 is a prime number
BaseRepresentation
bin111111000010111101001
310212221212201
413320113221
51012102042
6112140201
723363011
oct7702751
93787781
102065897
111191159
12837661
13574432
143bac41
152ac1b7
hex1f85e9

2065897 has 2 divisors, whose sum is σ = 2065898. Its totient is φ = 2065896.

The previous prime is 2065879. The next prime is 2065907. The reversal of 2065897 is 7985602.

Together with previous prime (2065879) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2019241 + 46656 = 1421^2 + 216^2 .

It is a cyclic number.

It is not a de Polignac number, because 2065897 - 27 = 2065769 is a prime.

It is not a weakly prime, because it can be changed into another prime (2065807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1032948 + 1032949.

It is an arithmetic number, because the mean of its divisors is an integer number (1032949).

22065897 is an apocalyptic number.

It is an amenable number.

2065897 is a deficient number, since it is larger than the sum of its proper divisors (1).

2065897 is an equidigital number, since it uses as much as digits as its factorization.

2065897 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 2065897 is about 1437.3228586508. The cubic root of 2065897 is about 127.3609300005.

The spelling of 2065897 in words is "two million, sixty-five thousand, eight hundred ninety-seven".