104085861 has 16 divisors (see below), whose sum is σ = 151580160. Its totient is φ = 63006320.

The previous prime is 104085859. The next prime is 104085881. The reversal of 104085861 is 168580401.

It is a cyclic number.

It is not a de Polignac number, because 104085861 - 2¹ = 104085859 is a prime.

It is a super-2 number, since 2×104085861² = 21667732920222642, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104085811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39070 + ... + 41648.

It is an arithmetic number, because the mean of its divisors is an integer number (9473760).

Almost surely, 2^104085861 is an apocalyptic number.

104085861 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

104085861 is a deficient number, since it is larger than the sum of its proper divisors (47494299).

104085861 is a wasteful number, since it uses less digits than its factorization.

104085861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3816.

The product of its (nonzero) digits is 7680, while the sum is 33.

The square root of 104085861 is about 10202.2478405497. The cubic root of 104085861 is about 470.3963172970.

The spelling of 104085861 in words is "one hundred four million, eighty-five thousand, eight hundred sixty-one".