49871 has 2 divisors, whose sum is σ = 49872. Its totient is φ = 49870.
The previous prime is 49853. The next prime is 49877. The reversal of 49871 is 17894.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 49871 - 26 = 49807 is a prime.
It is a Chen prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (49877) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24935 + 24936.
It is an arithmetic number, because the mean of its divisors is an integer number (24936).
249871 is an apocalyptic number.
49871 is a deficient number, since it is larger than the sum of its proper divisors (1).
49871 is an equidigital number, since it uses as much as digits as its factorization.
49871 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 2016, while the sum is 29.
The square root of 49871 is about 223.3181586885. The cubic root of 49871 is about 36.8086050293.
The spelling of 49871 in words is "forty-nine thousand, eight hundred seventy-one".
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