104399505 has 48 divisors (see below), whose sum is σ = 208226304. Its totient is φ = 47399040.

The previous prime is 104399501. The next prime is 104399521. The reversal of 104399505 is 505993401.

It is not a de Polignac number, because 104399505 - 2² = 104399501 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 104399505.

It is not an unprimeable number, because it can be changed into a prime (104399501) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 48400 + ... + 50510.

It is an arithmetic number, because the mean of its divisors is an integer number (4338048).

Almost surely, 2^104399505 is an apocalyptic number.

104399505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

104399505 is a deficient number, since it is larger than the sum of its proper divisors (103826799).

104399505 is a wasteful number, since it uses less digits than its factorization.

104399505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2286 (or 2283 counting only the distinct ones).

The product of its (nonzero) digits is 24300, while the sum is 36.

The square root of 104399505 is about 10217.6075966931. The cubic root of 104399505 is about 470.8683283741.

The spelling of 104399505 in words is "one hundred four million, three hundred ninety-nine thousand, five hundred five".