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6704021 is a prime number
BaseRepresentation
bin11001100100101110010101
3110121121012002
4121210232111
53204012041
6355405045
7110661152
oct31445625
913547162
106704021
113869915
1222b3785
13150959c
14c67229
158c659b
hex664b95

6704021 has 2 divisors, whose sum is σ = 6704022. Its totient is φ = 6704020.

The previous prime is 6704011. The next prime is 6704051. The reversal of 6704021 is 1204076.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4468996 + 2235025 = 2114^2 + 1495^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-6704021 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 6703984 and 6704002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6704011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3352010 + 3352011.

It is an arithmetic number, because the mean of its divisors is an integer number (3352011).

Almost surely, 26704021 is an apocalyptic number.

It is an amenable number.

6704021 is a deficient number, since it is larger than the sum of its proper divisors (1).

6704021 is an equidigital number, since it uses as much as digits as its factorization.

6704021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 6704021 is about 2589.2124285195. The cubic root of 6704021 is about 188.5580690118.

Adding to 6704021 its reverse (1204076), we get a palindrome (7908097).

Subtracting from 6704021 its reverse (1204076), we obtain a palindrome (5499945).

The spelling of 6704021 in words is "six million, seven hundred four thousand, twenty-one".