328419397 has 2 divisors, whose sum is σ = 328419398. Its totient is φ = 328419396.

The previous prime is 328419383. The next prime is 328419407. The reversal of 328419397 is 793914823.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 281098756 + 47320641 = 16766^2 + 6879^2 .

It is a cyclic number.

It is not a de Polignac number, because 328419397 - 2⁷ = 328419269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (328419197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164209698 + 164209699.

It is an arithmetic number, because the mean of its divisors is an integer number (164209699).

Almost surely, 2^328419397 is an apocalyptic number.

It is an amenable number.

328419397 is a deficient number, since it is larger than the sum of its proper divisors (1).

328419397 is an equidigital number, since it uses as much as digits as its factorization.

328419397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 326592, while the sum is 46.

The square root of 328419397 is about 18122.3452400621. The cubic root of 328419397 is about 689.9372602760.

The spelling of 328419397 in words is "three hundred twenty-eight million, four hundred nineteen thousand, three hundred ninety-seven".