104420391 has 16 divisors (see below), whose sum is σ = 147038976. Its totient is φ = 65781056.

The previous prime is 104420363. The next prime is 104420423. The reversal of 104420391 is 193024401.

It is a cyclic number.

It is not a de Polignac number, because 104420391 - 2⁵ = 104420359 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104420311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3390 + ... + 14843.

It is an arithmetic number, because the mean of its divisors is an integer number (9189936).

Almost surely, 2^104420391 is an apocalyptic number.

104420391 is a deficient number, since it is larger than the sum of its proper divisors (42618585).

104420391 is a wasteful number, since it uses less digits than its factorization.

104420391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18342.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 104420391 is about 10218.6296047954. The cubic root of 104420391 is about 470.8997266716.

Adding to 104420391 its reverse (193024401), we get a palindrome (297444792).

The spelling of 104420391 in words is "one hundred four million, four hundred twenty thousand, three hundred ninety-one".