104987 has 2 divisors, whose sum is σ = 104988. Its totient is φ = 104986.
The previous prime is 104971. The next prime is 104999. The reversal of 104987 is 789401.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 104987 - 24 = 104971 is a prime.
It is a super-2 number, since 2×1049872 = 22044540338, which contains 22 as substring.
It is a Chen prime.
It is not a weakly prime, because it can be changed into another prime (104917) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52493 + 52494.
It is an arithmetic number, because the mean of its divisors is an integer number (52494).
2104987 is an apocalyptic number.
104987 is a deficient number, since it is larger than the sum of its proper divisors (1).
104987 is an equidigital number, since it uses as much as digits as its factorization.
104987 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 2016, while the sum is 29.
The square root of 104987 is about 324.0169748640. The cubic root of 104987 is about 47.1749927380.
The spelling of 104987 in words is "one hundred four thousand, nine hundred eighty-seven".
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