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BaseRepresentation
bin10000010110001
3102110222
42002301
5231434
6102425
733254
oct20261
912428
108369
116319
124a15
133a6a
14309b
15272e
hex20b1

8369 has 2 divisors, whose sum is σ = 8370. Its totient is φ = 8368.

The previous prime is 8363. The next prime is 8377. The reversal of 8369 is 9638.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7744 + 625 = 88^2 + 25^2 .

It is a cyclic number.

It is not a de Polignac number, because 8369 - 24 = 8353 is a prime.

It is a super-2 number, since 2×83692 = 140080322, which contains 22 as substring.

It is a Chen prime.

It is an alternating number because its digits alternate between even and odd.

It is not a weakly prime, because it can be changed into another prime (8363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4184 + 4185.

It is an arithmetic number, because the mean of its divisors is an integer number (4185).

28369 is an apocalyptic number.

It is an amenable number.

8369 is a deficient number, since it is larger than the sum of its proper divisors (1).

8369 is an equidigital number, since it uses as much as digits as its factorization.

8369 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1296, while the sum is 26.

The square root of 8369 is about 91.4822387133. The cubic root of 8369 is about 20.3028897340.

The spelling of 8369 in words is "eight thousand, three hundred sixty-nine".