104278393 has 4 divisors (see below), whose sum is σ = 104302480. Its totient is φ = 104254308.

The previous prime is 104278387. The next prime is 104278409. The reversal of 104278393 is 393872401.

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 a de Polignac number, because none of the positive numbers 2^k-104278393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (104278313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3555 + ... + 14872.

It is an arithmetic number, because the mean of its divisors is an integer number (26075620).

Almost surely, 2^104278393 is an apocalyptic number.

It is an amenable number.

104278393 is a deficient number, since it is larger than the sum of its proper divisors (24087).

104278393 is an equidigital number, since it uses as much as digits as its factorization.

104278393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24086.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 104278393 is about 10211.6792448647. The cubic root of 104278393 is about 470.6861759411.

The spelling of 104278393 in words is "one hundred four million, two hundred seventy-eight thousand, three hundred ninety-three".