322206397 has 8 divisors (see below), whose sum is σ = 331140056. Its totient is φ = 313284672.

The previous prime is 322206377. The next prime is 322206403. The reversal of 322206397 is 793602223.

It can be written as a sum of positive squares in 4 ways, for example, as 119115396 + 203091001 = 10914^2 + 14251^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 322206397 - 2¹⁵ = 322173629 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (322206337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97423 + ... + 100675.

It is an arithmetic number, because the mean of its divisors is an integer number (41392507).

Almost surely, 2^322206397 is an apocalyptic number.

322206397 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

322206397 is the 10364-th hex number.

It is an amenable number.

322206397 is a deficient number, since it is larger than the sum of its proper divisors (8933659).

322206397 is a wasteful number, since it uses less digits than its factorization.

322206397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5967.

The product of its (nonzero) digits is 27216, while the sum is 34.

The square root of 322206397 is about 17950.1085512038. The cubic root of 322206397 is about 685.5588151396.

The spelling of 322206397 in words is "three hundred twenty-two million, two hundred six thousand, three hundred ninety-seven".