322621 has 12 divisors (see below), whose sum is σ = 368928. Its totient is φ = 281424.

The previous prime is 322613. The next prime is 322627. The reversal of 322621 is 126223.

It is not a de Polignac number, because 322621 - 2³ = 322613 is a prime.

It is an Ulam number.

It is a Duffinian number.

322621 is a modest number, since divided by 621 gives 322 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 322595 and 322604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (322627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3846 + ... + 3928.

It is an arithmetic number, because the mean of its divisors is an integer number (30744).

2³²²⁶²¹ is an apocalyptic number.

It is an amenable number.

322621 is a deficient number, since it is larger than the sum of its proper divisors (46307).

322621 is a wasteful number, since it uses less digits than its factorization.

322621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132 (or 119 counting only the distinct ones).

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

The square root of 322621 is about 567.9973591488. The cubic root of 322621 is about 68.5852739486.

Adding to 322621 its reverse (126223), we get a palindrome (448844).

The spelling of 322621 in words is "three hundred twenty-two thousand, six hundred twenty-one".