322649 has 2 divisors, whose sum is σ = 322650. Its totient is φ = 322648.

The previous prime is 322633. The next prime is 322669. The reversal of 322649 is 946223.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 322624 + 25 = 568^2 + 5^2 .

It is an emirp because it is prime and its reverse (946223) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 322649 - 2⁴ = 322633 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (322669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 161324 + 161325.

It is an arithmetic number, because the mean of its divisors is an integer number (161325).

2³²²⁶⁴⁹ is an apocalyptic number.

It is an amenable number.

322649 is a deficient number, since it is larger than the sum of its proper divisors (1).

322649 is an equidigital number, since it uses as much as digits as its factorization.

322649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2592, while the sum is 26.

The square root of 322649 is about 568.0220066159. The cubic root of 322649 is about 68.5872580436.

The spelling of 322649 in words is "three hundred twenty-two thousand, six hundred forty-nine".