1664083 has 2 divisors, whose sum is σ = 1664084. Its totient is φ = 1664082.
The previous prime is 1664071. The next prime is 1664101. The reversal of 1664083 is 3804661.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 1664083 - 213 = 1655891 is a prime.
1664083 is a lucky number.
It is not a weakly prime, because it can be changed into another prime (1664053) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 832041 + 832042.
It is an arithmetic number, because the mean of its divisors is an integer number (832042).
21664083 is an apocalyptic number.
1664083 is a deficient number, since it is larger than the sum of its proper divisors (1).
1664083 is an equidigital number, since it uses as much as digits as its factorization.
1664083 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 3456, while the sum is 28.
The square root of 1664083 is about 1289.9934108359. The cubic root of 1664083 is about 118.5018129533.
The spelling of 1664083 in words is "one million, six hundred sixty-four thousand, eighty-three".
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