70843 has 2 divisors, whose sum is σ = 70844. Its totient is φ = 70842.
The previous prime is 70841. The next prime is 70849. The reversal of 70843 is 34807.
It is a weak prime.
It is an emirp because it is prime and its reverse (34807) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 70843 - 21 = 70841 is a prime.
Together with 70841, it forms a pair of twin primes.
It is a plaindrome in base 16.
It is not a weakly prime, because it can be changed into another prime (70841) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35421 + 35422.
It is an arithmetic number, because the mean of its divisors is an integer number (35422).
270843 is an apocalyptic number.
70843 is a deficient number, since it is larger than the sum of its proper divisors (1).
70843 is an equidigital number, since it uses as much as digits as its factorization.
70843 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 672, while the sum is 22.
The square root of 70843 is about 266.1634835961. The cubic root of 70843 is about 41.3776334490.
The spelling of 70843 in words is "seventy thousand, eight hundred forty-three".
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