329522213 has 2 divisors, whose sum is σ = 329522214. Its totient is φ = 329522212.

The previous prime is 329522209. The next prime is 329522231. The reversal of 329522213 is 312225923.

Together with next prime (329522231) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 197318209 + 132204004 = 14047^2 + 11498^2 .

It is an emirp because it is prime and its reverse (312225923) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 329522213 - 2² = 329522209 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (329522293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164761106 + 164761107.

It is an arithmetic number, because the mean of its divisors is an integer number (164761107).

Almost surely, 2^329522213 is an apocalyptic number.

It is an amenable number.

329522213 is a deficient number, since it is larger than the sum of its proper divisors (1).

329522213 is an equidigital number, since it uses as much as digits as its factorization.

329522213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6480, while the sum is 29.

The square root of 329522213 is about 18152.7467067659. The cubic root of 329522213 is about 690.7086558177.

The spelling of 329522213 in words is "three hundred twenty-nine million, five hundred twenty-two thousand, two hundred thirteen".