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78341 is a prime number
BaseRepresentation
bin10011001000000101
310222110112
4103020011
510001331
61402405
7444254
oct231005
9128415
1078341
115394a
1239405
1329873
142079b
151832b
hex13205

78341 has 2 divisors, whose sum is σ = 78342. Its totient is φ = 78340.

The previous prime is 78317. The next prime is 78347. The reversal of 78341 is 14387.

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., 73441 + 4900 = 271^2 + 70^2 .

It is an emirp because it is prime and its reverse (14387) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 78341 - 26 = 78277 is a prime.

It is a super-2 number, since 2×783412 = 12274624562, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

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

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39170 + 39171.

It is an arithmetic number, because the mean of its divisors is an integer number (39171).

278341 is an apocalyptic number.

It is an amenable number.

78341 is a deficient number, since it is larger than the sum of its proper divisors (1).

78341 is an equidigital number, since it uses as much as digits as its factorization.

78341 is an evil number, because the sum of its binary digits is even.

The product of its digits is 672, while the sum is 23.

The square root of 78341 is about 279.8946230280. The cubic root of 78341 is about 42.7887602593.

The spelling of 78341 in words is "seventy-eight thousand, three hundred forty-one".