328406077 has 2 divisors, whose sum is σ = 328406078. Its totient is φ = 328406076.

The previous prime is 328406069. The next prime is 328406087. The reversal of 328406077 is 770604823.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 174794841 + 153611236 = 13221^2 + 12394^2 .

It is a cyclic number.

It is not a de Polignac number, because 328406077 - 2³ = 328406069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (328406047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164203038 + 164203039.

It is an arithmetic number, because the mean of its divisors is an integer number (164203039).

Almost surely, 2^328406077 is an apocalyptic number.

It is an amenable number.

328406077 is a deficient number, since it is larger than the sum of its proper divisors (1).

328406077 is an equidigital number, since it uses as much as digits as its factorization.

328406077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56448, while the sum is 37.

The square root of 328406077 is about 18121.9777342320. The cubic root of 328406077 is about 689.9279326818.

The spelling of 328406077 in words is "three hundred twenty-eight million, four hundred six thousand, seventy-seven".