329416387 has 4 divisors (see below), whose sum is σ = 329855776. Its totient is φ = 328977000.

The previous prime is 329416379. The next prime is 329416391. The reversal of 329416387 is 783614923.

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 329416387 - 2³ = 329416379 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (329416397) 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, 218568 + ... + 220069.

It is an arithmetic number, because the mean of its divisors is an integer number (82463944).

Almost surely, 2^329416387 is an apocalyptic number.

329416387 is a deficient number, since it is larger than the sum of its proper divisors (439389).

329416387 is an equidigital number, since it uses as much as digits as its factorization.

329416387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439388.

The product of its digits is 217728, while the sum is 43.

The square root of 329416387 is about 18149.8315970149. The cubic root of 329416387 is about 690.6347075804.

The spelling of 329416387 in words is "three hundred twenty-nine million, four hundred sixteen thousand, three hundred eighty-seven".