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489941 is a prime number
BaseRepresentation
bin1110111100111010101
3220220001222
41313213111
5111134231
614300125
74110254
oct1674725
9826058
10489941
11305111
121b7645
1314200a
14ca79b
159a27b
hex779d5

489941 has 2 divisors, whose sum is σ = 489942. Its totient is φ = 489940.

The previous prime is 489913. The next prime is 489943. The reversal of 489941 is 149984.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 461041 + 28900 = 679^2 + 170^2 .

It is a cyclic number.

It is not a de Polignac number, because 489941 - 218 = 227797 is a prime.

It is a Sophie Germain prime.

Together with 489943, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (489943) 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, 244970 + 244971.

It is an arithmetic number, because the mean of its divisors is an integer number (244971).

2489941 is an apocalyptic number.

It is an amenable number.

489941 is a deficient number, since it is larger than the sum of its proper divisors (1).

489941 is an equidigital number, since it uses as much as digits as its factorization.

489941 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10368, while the sum is 35.

The square root of 489941 is about 699.9578558742. The cubic root of 489941 is about 78.8341872838.

The spelling of 489941 in words is "four hundred eighty-nine thousand, nine hundred forty-one".