97687 has 2 divisors, whose sum is σ = 97688. Its totient is φ = 97686.
The previous prime is 97673. The next prime is 97711. The reversal of 97687 is 78679.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 97687 - 215 = 64919 is a prime.
It is a Chen prime.
97687 is a lucky number.
It is a plaindrome in base 5.
It is a zygodrome in base 5.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (97607) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48843 + 48844.
It is an arithmetic number, because the mean of its divisors is an integer number (48844).
297687 is an apocalyptic number.
97687 is a deficient number, since it is larger than the sum of its proper divisors (1).
97687 is an equidigital number, since it uses as much as digits as its factorization.
97687 is an evil number, because the sum of its binary digits is even.
The product of its digits is 21168, while the sum is 37.
The square root of 97687 is about 312.5491961276. The cubic root of 97687 is about 46.0552266751.
It can be divided in two parts, 97 and 687, that added together give a square (784 = 282).
The spelling of 97687 in words is "ninety-seven thousand, six hundred eighty-seven".
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