104128717 has 16 divisors (see below), whose sum is σ = 130056192. Its totient is φ = 80993520.

The previous prime is 104128699. The next prime is 104128741. The reversal of 104128717 is 717821401.

It is a cyclic number.

It is not a de Polignac number, because 104128717 - 2¹⁹ = 103604429 is a prime.

It is a super-3 number, since 3×104128717³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104128747) 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, 65668 + ... + 67234.

It is an arithmetic number, because the mean of its divisors is an integer number (8128512).

Almost surely, 2^104128717 is an apocalyptic number.

It is an amenable number.

104128717 is a deficient number, since it is larger than the sum of its proper divisors (25927475).

104128717 is a wasteful number, since it uses less digits than its factorization.

104128717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2448.

The product of its (nonzero) digits is 3136, while the sum is 31.

The square root of 104128717 is about 10204.3479458513. The cubic root of 104128717 is about 470.4608682944.

It can be divided in two parts, 104 and 128717, that added together give a palindrome (128821).

The spelling of 104128717 in words is "one hundred four million, one hundred twenty-eight thousand, seven hundred seventeen".