1928071 has 2 divisors, whose sum is σ = 1928072. Its totient is φ = 1928070.
The previous prime is 1928041. The next prime is 1928093. The reversal of 1928071 is 1708291.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 1928071 - 29 = 1927559 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (1928011) 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, 964035 + 964036.
It is an arithmetic number, because the mean of its divisors is an integer number (964036).
21928071 is an apocalyptic number.
1928071 is a deficient number, since it is larger than the sum of its proper divisors (1).
1928071 is an equidigital number, since it uses as much as digits as its factorization.
1928071 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 1008, while the sum is 28.
The square root of 1928071 is about 1388.5499630910. The cubic root of 1928071 is about 124.4632128427.
The spelling of 1928071 in words is "one million, nine hundred twenty-eight thousand, seventy-one".
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