104809378 has 4 divisors (see below), whose sum is σ = 157214070. Its totient is φ = 52404688.

The previous prime is 104809363. The next prime is 104809381. The reversal of 104809378 is 873908401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 873908401 = 19 ⋅45995179.

It can be written as a sum of positive squares in only one way, i.e., 95707089 + 9102289 = 9783^2 + 3017^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 104809378.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26202343 + ... + 26202346.

Almost surely, 2^104809378 is an apocalyptic number.

104809378 is a deficient number, since it is larger than the sum of its proper divisors (52404692).

104809378 is an equidigital number, since it uses as much as digits as its factorization.

104809378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52404691.

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 104809378 is about 10237.6451393863. The cubic root of 104809378 is about 471.4837342158.

The spelling of 104809378 in words is "one hundred four million, eight hundred nine thousand, three hundred seventy-eight".