328745077 has 2 divisors, whose sum is σ = 328745078. Its totient is φ = 328745076.

The previous prime is 328745071. The next prime is 328745101. The reversal of 328745077 is 770547823.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 279759076 + 48986001 = 16726^2 + 6999^2 .

It is an emirp because it is prime and its reverse (770547823) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 328745077 - 2³ = 328745069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (328745071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164372538 + 164372539.

It is an arithmetic number, because the mean of its divisors is an integer number (164372539).

Almost surely, 2^328745077 is an apocalyptic number.

It is an amenable number.

328745077 is a deficient number, since it is larger than the sum of its proper divisors (1).

328745077 is an equidigital number, since it uses as much as digits as its factorization.

328745077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 329280, while the sum is 43.

The square root of 328745077 is about 18131.3286054828. The cubic root of 328745077 is about 690.1652457269.

The spelling of 328745077 in words is "three hundred twenty-eight million, seven hundred forty-five thousand, seventy-seven".