621208 has 16 divisors (see below), whose sum is σ = 1331280. Its totient is φ = 266208.

The previous prime is 621143. The next prime is 621217. The reversal of 621208 is 802126.

It is a happy number.

621208 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

621208 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5491 + ... + 5602.

It is an arithmetic number, because the mean of its divisors is an integer number (83205).

2⁶²¹²⁰⁸ is an apocalyptic number.

It is an amenable number.

621208 is an abundant number, since it is smaller than the sum of its proper divisors (710072).

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

621208 is a wasteful number, since it uses less digits than its factorization.

621208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11106 (or 11102 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 621208 is about 788.1674948893. The cubic root of 621208 is about 85.3255336838.

It can be divided in two parts, 62120 and 8, that added together give a triangular number (62128 = T₃₅₂).

The spelling of 621208 in words is "six hundred twenty-one thousand, two hundred eight".