329148947 has 2 divisors, whose sum is σ = 329148948. Its totient is φ = 329148946.

The previous prime is 329148923. The next prime is 329148949. The reversal of 329148947 is 749841923.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 329148947 - 2⁸ = 329148691 is a prime.

It is a super-2 number, since 2×329148947² = 216678058622417618, which contains 22 as substring.

Together with 329148949, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (329148949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164574473 + 164574474.

It is an arithmetic number, because the mean of its divisors is an integer number (164574474).

Almost surely, 2^329148947 is an apocalyptic number.

329148947 is a deficient number, since it is larger than the sum of its proper divisors (1).

329148947 is an equidigital number, since it uses as much as digits as its factorization.

329148947 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 435456, while the sum is 47.

The square root of 329148947 is about 18142.4625395782. The cubic root of 329148947 is about 690.4477574058.

The spelling of 329148947 in words is "three hundred twenty-nine million, one hundred forty-eight thousand, nine hundred forty-seven".