621104 has 20 divisors (see below), whose sum is σ = 1313160. Its totient is φ = 282240.

The previous prime is 621097. The next prime is 621113. The reversal of 621104 is 401126.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1589 + ... + 1940.

It is an arithmetic number, because the mean of its divisors is an integer number (65658).

2⁶²¹¹⁰⁴ is an apocalyptic number.

It is an amenable number.

621104 is an abundant number, since it is smaller than the sum of its proper divisors (692056).

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

621104 is a wasteful number, since it uses less digits than its factorization.

621104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3548 (or 3542 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 621104 is about 788.1015163036. The cubic root of 621104 is about 85.3207718055.

The spelling of 621104 in words is "six hundred twenty-one thousand, one hundred four".