104728817 has 4 divisors (see below), whose sum is σ = 110240880. Its totient is φ = 99216756.

The previous prime is 104728807. The next prime is 104728843. The reversal of 104728817 is 718827401.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 104728817 - 2⁶ = 104728753 is a prime.

It is a super-2 number, since 2×104728817² = 21936250220438978, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (104728807) 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 3 ways as a sum of consecutive naturals, for example, 2756003 + ... + 2756040.

It is an arithmetic number, because the mean of its divisors is an integer number (27560220).

Almost surely, 2^104728817 is an apocalyptic number.

It is an amenable number.

104728817 is a deficient number, since it is larger than the sum of its proper divisors (5512063).

104728817 is an equidigital number, since it uses as much as digits as its factorization.

104728817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5512062.

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

The square root of 104728817 is about 10233.7098356363. The cubic root of 104728817 is about 471.3629023531.

The spelling of 104728817 in words is "one hundred four million, seven hundred twenty-eight thousand, eight hundred seventeen".