104421921 has 8 divisors (see below), whose sum is σ = 142191744. Its totient is φ = 68133360.

The previous prime is 104421887. The next prime is 104421997. The reversal of 104421921 is 129124401.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 104421921 - 2¹⁴ = 104405537 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 104421891 and 104421900.

It is not an unprimeable number, because it can be changed into a prime (104411921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 370150 + ... + 370431.

It is an arithmetic number, because the mean of its divisors is an integer number (17773968).

Almost surely, 2^104421921 is an apocalyptic number.

It is an amenable number.

104421921 is a deficient number, since it is larger than the sum of its proper divisors (37769823).

104421921 is an equidigital number, since it uses as much as digits as its factorization.

104421921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 740631.

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 104421921 is about 10218.7044677885. The cubic root of 104421921 is about 470.9020265834.

The spelling of 104421921 in words is "one hundred four million, four hundred twenty-one thousand, nine hundred twenty-one".