328609049 has 4 divisors (see below), whose sum is σ = 329328564. Its totient is φ = 327889536.

The previous prime is 328609033. The next prime is 328609051. The reversal of 328609049 is 940906823.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 244703449 + 83905600 = 15643^2 + 9160^2 .

It is a cyclic number.

It is not a de Polignac number, because 328609049 - 2⁴ = 328609033 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 328608997 and 328609015.

It is not an unprimeable number, because it can be changed into a prime (328609019) 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, 359072 + ... + 359985.

It is an arithmetic number, because the mean of its divisors is an integer number (82332141).

Almost surely, 2^328609049 is an apocalyptic number.

It is an amenable number.

328609049 is a deficient number, since it is larger than the sum of its proper divisors (719515).

328609049 is an equidigital number, since it uses as much as digits as its factorization.

328609049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 719514.

The product of its (nonzero) digits is 93312, while the sum is 41.

The square root of 328609049 is about 18127.5770305907. The cubic root of 328609049 is about 690.0700404991.

The spelling of 328609049 in words is "three hundred twenty-eight million, six hundred nine thousand, forty-nine".