329479949 has 2 divisors, whose sum is σ = 329479950. Its totient is φ = 329479948.

The previous prime is 329479897. The next prime is 329479951. The reversal of 329479949 is 949974923.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 328515625 + 964324 = 18125^2 + 982^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-329479949 is a prime.

Together with 329479951, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 329479894 and 329479903.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (329479979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164739974 + 164739975.

It is an arithmetic number, because the mean of its divisors is an integer number (164739975).

Almost surely, 2^329479949 is an apocalyptic number.

It is an amenable number.

329479949 is a deficient number, since it is larger than the sum of its proper divisors (1).

329479949 is an equidigital number, since it uses as much as digits as its factorization.

329479949 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4408992, while the sum is 56.

The square root of 329479949 is about 18151.5825480865. The cubic root of 329479949 is about 690.6791248204.

The spelling of 329479949 in words is "three hundred twenty-nine million, four hundred seventy-nine thousand, nine hundred forty-nine".