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648007 is a prime number
BaseRepresentation
bin10011110001101000111
31012220220021
42132031013
5131214012
621520011
75336143
oct2361507
91186807
10648007
11402948
12273007
13198c49
1412c223
15cc007
hex9e347

648007 has 2 divisors, whose sum is σ = 648008. Its totient is φ = 648006.

The previous prime is 647987. The next prime is 648019. The reversal of 648007 is 700846.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 648007 - 219 = 123719 is a prime.

It is an Ulam number.

It is equal to p52675 and since 648007 and 52675 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 648007.

It is not a weakly prime, because it can be changed into another prime (648047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 324003 + 324004.

It is an arithmetic number, because the mean of its divisors is an integer number (324004).

2648007 is an apocalyptic number.

648007 is a deficient number, since it is larger than the sum of its proper divisors (1).

648007 is an equidigital number, since it uses as much as digits as its factorization.

648007 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 648007 is about 804.9888197981. The cubic root of 648007 is about 86.5352858145.

The spelling of 648007 in words is "six hundred forty-eight thousand, seven".