6421104 has 120 divisors (see below), whose sum is σ = 19788912. Its totient is φ = 1935360.

The previous prime is 6421099. The next prime is 6421111. The reversal of 6421104 is 4011246.

6421104 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 105234 + ... + 105294.

Almost surely, 2^6421104 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6421104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9894456).

6421104 is an abundant number, since it is smaller than the sum of its proper divisors (13367808).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6421104 is a wasteful number, since it uses less digits than its factorization.

6421104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135 (or 126 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 6421104 is about 2533.9897395215. The cubic root of 6421104 is about 185.8674046309.

The spelling of 6421104 in words is "six million, four hundred twenty-one thousand, one hundred four".