328090913 has 2 divisors, whose sum is σ = 328090914. Its totient is φ = 328090912.

The previous prime is 328090909. The next prime is 328090921. The reversal of 328090913 is 319090823.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 320517409 + 7573504 = 17903^2 + 2752^2 .

It is a cyclic number.

It is not a de Polignac number, because 328090913 - 2² = 328090909 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (328090013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164045456 + 164045457.

It is an arithmetic number, because the mean of its divisors is an integer number (164045457).

Almost surely, 2^328090913 is an apocalyptic number.

It is an amenable number.

328090913 is a deficient number, since it is larger than the sum of its proper divisors (1).

328090913 is an equidigital number, since it uses as much as digits as its factorization.

328090913 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 328090913 is about 18113.2800177108. The cubic root of 328090913 is about 689.7071592178.

The spelling of 328090913 in words is "three hundred twenty-eight million, ninety thousand, nine hundred thirteen".