104378805 has 18 divisors (see below), whose sum is σ = 181042134. Its totient is φ = 55632144.

The previous prime is 104378797. The next prime is 104378809. The reversal of 104378805 is 508873401.

It can be written as a sum of positive squares in only one way, i.e., 83503044 + 20875761 = 9138^2 + 4569^2 .

It is not a de Polignac number, because 104378805 - 2³ = 104378797 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 104378805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104378809) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 67774 + ... + 69296.

Almost surely, 2^104378805 is an apocalyptic number.

104378805 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

104378805 is a deficient number, since it is larger than the sum of its proper divisors (76663329).

104378805 is an frugal number, since it uses more digits than its factorization.

104378805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3057 (or 1531 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 104378805 is about 10216.5945891965. The cubic root of 104378805 is about 470.8372055616.

The spelling of 104378805 in words is "one hundred four million, three hundred seventy-eight thousand, eight hundred five".