328690039 has 2 divisors, whose sum is σ = 328690040. Its totient is φ = 328690038.

The previous prime is 328690013. The next prime is 328690049. The reversal of 328690039 is 930096823.

It is a strong prime.

It is an emirp because it is prime and its reverse (930096823) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-328690039 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 328689983 and 328690010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (328690049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164345019 + 164345020.

It is an arithmetic number, because the mean of its divisors is an integer number (164345020).

Almost surely, 2^328690039 is an apocalyptic number.

328690039 is a deficient number, since it is larger than the sum of its proper divisors (1).

328690039 is an equidigital number, since it uses as much as digits as its factorization.

328690039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69984, while the sum is 40.

The square root of 328690039 is about 18129.8107822448. The cubic root of 328690039 is about 690.1267281060.

The spelling of 328690039 in words is "three hundred twenty-eight million, six hundred ninety thousand, thirty-nine".