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83424169 is a prime number
BaseRepresentation
bin1001111100011…
…11001110101001
312210222101110001
410332033032221
5132324033134
612140023001
72032044103
oct476171651
9183871401
1083424169
11430aa8a4
1223b31a61
131438bb1a
14b118573
1574cd414
hex4f8f3a9

83424169 has 2 divisors, whose sum is σ = 83424170. Its totient is φ = 83424168.

The previous prime is 83424127. The next prime is 83424199. The reversal of 83424169 is 96142438.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63282025 + 20142144 = 7955^2 + 4488^2 .

It is a cyclic number.

It is not a de Polignac number, because 83424169 - 29 = 83423657 is a prime.

It is a super-2 number, since 2×834241692 = 13919183946681122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (83424109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41712084 + 41712085.

It is an arithmetic number, because the mean of its divisors is an integer number (41712085).

Almost surely, 283424169 is an apocalyptic number.

It is an amenable number.

83424169 is a deficient number, since it is larger than the sum of its proper divisors (1).

83424169 is an equidigital number, since it uses as much as digits as its factorization.

83424169 is an evil number, because the sum of its binary digits is even.

The product of its digits is 41472, while the sum is 37.

The square root of 83424169 is about 9133.6832110600. The cubic root of 83424169 is about 436.9488792667.

The spelling of 83424169 in words is "eighty-three million, four hundred twenty-four thousand, one hundred sixty-nine".