329479909 has 4 divisors (see below), whose sum is σ = 359432640. Its totient is φ = 299527180.

The previous prime is 329479897. The next prime is 329479949. The reversal of 329479909 is 909974923.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 329479909 - 2⁷ = 329479781 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (329479949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14976349 + ... + 14976370.

It is an arithmetic number, because the mean of its divisors is an integer number (89858160).

Almost surely, 2^329479909 is an apocalyptic number.

It is an amenable number.

329479909 is a deficient number, since it is larger than the sum of its proper divisors (29952731).

329479909 is a wasteful number, since it uses less digits than its factorization.

329479909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29952730.

The product of its (nonzero) digits is 1102248, while the sum is 52.

The square root of 329479909 is about 18151.5814462542. The cubic root of 329479909 is about 690.6790968701.

The spelling of 329479909 in words is "three hundred twenty-nine million, four hundred seventy-nine thousand, nine hundred nine".