328069615 has 4 divisors (see below), whose sum is σ = 393683544. Its totient is φ = 262455688.

The previous prime is 328069613. The next prime is 328069627. The reversal of 328069615 is 516960823.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 516960823 = 2741 ⋅188603.

It is a cyclic number.

It is not a de Polignac number, because 328069615 - 2¹ = 328069613 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328069613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32806957 + ... + 32806966.

It is an arithmetic number, because the mean of its divisors is an integer number (98420886).

Almost surely, 2^328069615 is an apocalyptic number.

328069615 is a deficient number, since it is larger than the sum of its proper divisors (65613929).

328069615 is an equidigital number, since it uses as much as digits as its factorization.

328069615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65613928.

The product of its (nonzero) digits is 77760, while the sum is 40.

The square root of 328069615 is about 18112.6920969800. The cubic root of 328069615 is about 689.6922347966.

The spelling of 328069615 in words is "three hundred twenty-eight million, sixty-nine thousand, six hundred fifteen".