329185949 has 2 divisors, whose sum is σ = 329185950. Its totient is φ = 329185948.

The previous prime is 329185921. The next prime is 329186023. The reversal of 329185949 is 949581923.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 327863449 + 1322500 = 18107^2 + 1150^2 .

It is an emirp because it is prime and its reverse (949581923) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 329185949 - 2²⁰ = 328137373 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 329185897 and 329185906.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (329185919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164592974 + 164592975.

It is an arithmetic number, because the mean of its divisors is an integer number (164592975).

Almost surely, 2^329185949 is an apocalyptic number.

It is an amenable number.

329185949 is a deficient number, since it is larger than the sum of its proper divisors (1).

329185949 is an equidigital number, since it uses as much as digits as its factorization.

329185949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 699840, while the sum is 50.

The square root of 329185949 is about 18143.4822732572. The cubic root of 329185949 is about 690.4736291688.

The spelling of 329185949 in words is "three hundred twenty-nine million, one hundred eighty-five thousand, nine hundred forty-nine".