329007947 has 4 divisors (see below), whose sum is σ = 329684016. Its totient is φ = 328331880.

The previous prime is 329007937. The next prime is 329007967. The reversal of 329007947 is 749700923.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 329007947 - 2²⁰ = 327959371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (329007937) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 337304 + ... + 338277.

It is an arithmetic number, because the mean of its divisors is an integer number (82421004).

Almost surely, 2^329007947 is an apocalyptic number.

329007947 is a deficient number, since it is larger than the sum of its proper divisors (676069).

329007947 is an equidigital number, since it uses as much as digits as its factorization.

329007947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 676068.

The product of its (nonzero) digits is 95256, while the sum is 41.

The square root of 329007947 is about 18138.5762120405. The cubic root of 329007947 is about 690.3491525652.

The spelling of 329007947 in words is "three hundred twenty-nine million, seven thousand, nine hundred forty-seven".