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83828369 is a prime number
BaseRepresentation
bin1001111111100…
…01111010010001
312211201220220102
410333301322101
5132430001434
612152422145
72035346402
oct477617221
9184656812
1083828369
1143356549
12240a7955
13144a0ab1
14b1c19a9
15755d07e
hex4ff1e91

83828369 has 2 divisors, whose sum is σ = 83828370. Its totient is φ = 83828368.

The previous prime is 83828287. The next prime is 83828383. The reversal of 83828369 is 96382838.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54937744 + 28890625 = 7412^2 + 5375^2 .

It is a cyclic number.

It is not a de Polignac number, because 83828369 - 220 = 82779793 is a prime.

It is a super-2 number, since 2×838283692 = 14054390898400322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (83828389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41914184 + 41914185.

It is an arithmetic number, because the mean of its divisors is an integer number (41914185).

Almost surely, 283828369 is an apocalyptic number.

It is an amenable number.

83828369 is a deficient number, since it is larger than the sum of its proper divisors (1).

83828369 is an equidigital number, since it uses as much as digits as its factorization.

83828369 is an evil number, because the sum of its binary digits is even.

The product of its digits is 497664, while the sum is 47.

The square root of 83828369 is about 9155.7833635359. The cubic root of 83828369 is about 437.6534323343.

The spelling of 83828369 in words is "eighty-three million, eight hundred twenty-eight thousand, three hundred sixty-nine".