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828449 is a prime number
BaseRepresentation
bin11001010010000100001
31120002102022
43022100201
5203002244
625431225
710020206
oct3122041
91502368
10828449
11516476
1233b515
1323010b
14177cad
151156ee
hexca421

828449 has 2 divisors, whose sum is σ = 828450. Its totient is φ = 828448.

The previous prime is 828431. The next prime is 828517. The reversal of 828449 is 944828.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 429025 + 399424 = 655^2 + 632^2 .

It is a cyclic number.

It is not a de Polignac number, because 828449 - 216 = 762913 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a plaindrome in base 15.

It is a nialpdrome in base 16.

It is not a weakly prime, because it can be changed into another prime (828409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 414224 + 414225.

It is an arithmetic number, because the mean of its divisors is an integer number (414225).

2828449 is an apocalyptic number.

It is an amenable number.

828449 is a deficient number, since it is larger than the sum of its proper divisors (1).

828449 is an equidigital number, since it uses as much as digits as its factorization.

828449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18432, while the sum is 35.

The square root of 828449 is about 910.1917380420. The cubic root of 828449 is about 93.9193891677.

The spelling of 828449 in words is "eight hundred twenty-eight thousand, four hundred forty-nine".