104185857 has 12 divisors (see below), whose sum is σ = 140399376. Its totient is φ = 68722560.

The previous prime is 104185841. The next prime is 104185859. The reversal of 104185857 is 758581401.

It is not a de Polignac number, because 104185857 - 2⁴ = 104185841 is a prime.

It is not an unprimeable number, because it can be changed into a prime (104185859) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26382 + ... + 30072.

It is an arithmetic number, because the mean of its divisors is an integer number (11699948).

It is a Proth number, since it is equal to 6359 ⋅ 2¹⁴ + 1 and 6359 < 2¹⁴.

Almost surely, 2^104185857 is an apocalyptic number.

It is an amenable number.

104185857 is a deficient number, since it is larger than the sum of its proper divisors (36213519).

104185857 is an frugal number, since it uses more digits than its factorization.

104185857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3888 (or 3791 counting only the distinct ones).

The product of its (nonzero) digits is 44800, while the sum is 39.

The square root of 104185857 is about 10207.1473487944. The cubic root of 104185857 is about 470.5469067385.

The spelling of 104185857 in words is "one hundred four million, one hundred eighty-five thousand, eight hundred fifty-seven".