104287187 has 2 divisors, whose sum is σ = 104287188. Its totient is φ = 104287186.

The previous prime is 104287153. The next prime is 104287217. The reversal of 104287187 is 781782401.

It is a strong prime.

It is an emirp because it is prime and its reverse (781782401) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 104287187 - 2¹⁶ = 104221651 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 104287187.

It is not a weakly prime, because it can be changed into another prime (104287147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52143593 + 52143594.

It is an arithmetic number, because the mean of its divisors is an integer number (52143594).

Almost surely, 2^104287187 is an apocalyptic number.

104287187 is a deficient number, since it is larger than the sum of its proper divisors (1).

104287187 is an equidigital number, since it uses as much as digits as its factorization.

104287187 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25088, while the sum is 38.

The square root of 104287187 is about 10212.1098211878. The cubic root of 104287187 is about 470.6994068632.

The spelling of 104287187 in words is "one hundred four million, two hundred eighty-seven thousand, one hundred eighty-seven".