104404505 has 4 divisors (see below), whose sum is σ = 125285412. Its totient is φ = 83523600.

The previous prime is 104404493. The next prime is 104404513. The reversal of 104404505 is 505404401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 505404401 = 613 ⋅824477.

It can be written as a sum of positive squares in 2 ways, for example, as 66113161 + 38291344 = 8131^2 + 6188^2 .

It is not a de Polignac number, because 104404505 - 2⁶ = 104404441 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10440446 + ... + 10440455.

It is an arithmetic number, because the mean of its divisors is an integer number (31321353).

Almost surely, 2^104404505 is an apocalyptic number.

It is an amenable number.

104404505 is a deficient number, since it is larger than the sum of its proper divisors (20880907).

104404505 is an equidigital number, since it uses as much as digits as its factorization.

104404505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20880906.

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 104404505 is about 10217.8522694351. The cubic root of 104404505 is about 470.8758453448.

Adding to 104404505 its reverse (505404401), we get a palindrome (609808906).

The spelling of 104404505 in words is "one hundred four million, four hundred four thousand, five hundred five".