104787 has 8 divisors (see below), whose sum is σ = 155280. Its totient is φ = 69840.

The previous prime is 104779. The next prime is 104789. The reversal of 104787 is 787401.

It is not a de Polignac number, because 104787 - 2³ = 104779 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 3881 = 104787 / (1 + 0 + 4 + 7 + 8 + 7).

It is a self number, because there is not a number n which added to its sum of digits gives 104787.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 104787.

It is not an unprimeable number, because it can be changed into a prime (104789) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1914 + ... + 1967.

It is an arithmetic number, because the mean of its divisors is an integer number (19410).

2¹⁰⁴⁷⁸⁷ is an apocalyptic number.

104787 is a deficient number, since it is larger than the sum of its proper divisors (50493).

104787 is an equidigital number, since it uses as much as digits as its factorization.

104787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3890 (or 3884 counting only the distinct ones).

The product of its (nonzero) digits is 1568, while the sum is 27.

The square root of 104787 is about 323.7082019350. The cubic root of 104787 is about 47.1450176106.

The spelling of 104787 in words is "one hundred four thousand, seven hundred eighty-seven".