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97871 is a prime number
BaseRepresentation
bin10111111001001111
311222020212
4113321033
511112441
62033035
7555224
oct277117
9158225
1097871
1167594
124877b
1335717
142794b
151deeb
hex17e4f

97871 has 2 divisors, whose sum is σ = 97872. Its totient is φ = 97870.

The previous prime is 97861. The next prime is 97879. The reversal of 97871 is 17879.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 97871 - 210 = 96847 is a prime.

It is a Sophie Germain 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 (97879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48935 + 48936.

It is an arithmetic number, because the mean of its divisors is an integer number (48936).

297871 is an apocalyptic number.

97871 is a deficient number, since it is larger than the sum of its proper divisors (1).

97871 is an equidigital number, since it uses as much as digits as its factorization.

97871 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3528, while the sum is 32.

The square root of 97871 is about 312.8434113099. The cubic root of 97871 is about 46.0841245725.

Adding to 97871 its sum of digits (32), we get a triangular number (97903 = T442).

The spelling of 97871 in words is "ninety-seven thousand, eight hundred seventy-one".