104223421 has 4 divisors (see below), whose sum is σ = 104245344. Its totient is φ = 104201500.

The previous prime is 104223409. The next prime is 104223433. The reversal of 104223421 is 124322401.

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, and also an emirpimes, since its reverse is a distinct semiprime: 124322401 = 7 ⋅17760343.

It is an interprime number because it is at equal distance from previous prime (104223409) and next prime (104223433).

It is a cyclic number.

It is not a de Polignac number, because 104223421 - 2²⁵ = 70668989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104223401) 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, 505 + ... + 14446.

It is an arithmetic number, because the mean of its divisors is an integer number (26061336).

Almost surely, 2^104223421 is an apocalyptic number.

It is an amenable number.

104223421 is a deficient number, since it is larger than the sum of its proper divisors (21923).

104223421 is an equidigital number, since it uses as much as digits as its factorization.

104223421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21922.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 104223421 is about 10208.9872661298. The cubic root of 104223421 is about 470.6034515218.

Adding to 104223421 its reverse (124322401), we get a palindrome (228545822).

The spelling of 104223421 in words is "one hundred four million, two hundred twenty-three thousand, four hundred twenty-one".