621322 has 16 divisors (see below), whose sum is σ = 1048320. Its totient is φ = 274032.

The previous prime is 621317. The next prime is 621337. The reversal of 621322 is 223126.

621322 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 621296 and 621305.

It is an unprimeable number.

621322 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 7 ways as a sum of consecutive naturals, for example, 79 + ... + 1117.

It is an arithmetic number, because the mean of its divisors is an integer number (65520).

2⁶²¹³²² is an apocalyptic number.

621322 is a deficient number, since it is larger than the sum of its proper divisors (426998).

621322 is a wasteful number, since it uses less digits than its factorization.

621322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1077.

The product of its digits is 144, while the sum is 16.

The square root of 621322 is about 788.2398112250. The cubic root of 621322 is about 85.3307528245.

Adding to 621322 its reverse (223126), we get a palindrome (844448).

The spelling of 621322 in words is "six hundred twenty-one thousand, three hundred twenty-two".