326398649 has 2 divisors, whose sum is σ = 326398650. Its totient is φ = 326398648.

The previous prime is 326398637. The next prime is 326398651. The reversal of 326398649 is 946893623.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 269124025 + 57274624 = 16405^2 + 7568^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-326398649 is a prime.

Together with 326398651, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 326398597 and 326398606.

It is not a weakly prime, because it can be changed into another prime (326398949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 163199324 + 163199325.

It is an arithmetic number, because the mean of its divisors is an integer number (163199325).

Almost surely, 2^326398649 is an apocalyptic number.

It is an amenable number.

326398649 is a deficient number, since it is larger than the sum of its proper divisors (1).

326398649 is an equidigital number, since it uses as much as digits as its factorization.

326398649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1679616, while the sum is 50.

The square root of 326398649 is about 18066.5062754258. The cubic root of 326398649 is about 688.5192983394.

The spelling of 326398649 in words is "three hundred twenty-six million, three hundred ninety-eight thousand, six hundred forty-nine".