396898013 has 2 divisors, whose sum is σ = 396898014. Its totient is φ = 396898012.

The previous prime is 396898009. The next prime is 396898027. The reversal of 396898013 is 310898693.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 370293049 + 26604964 = 19243^2 + 5158^2 .

It is a cyclic number.

It is not a de Polignac number, because 396898013 - 2² = 396898009 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (396898003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198449006 + 198449007.

It is an arithmetic number, because the mean of its divisors is an integer number (198449007).

Almost surely, 2^396898013 is an apocalyptic number.

It is an amenable number.

396898013 is a deficient number, since it is larger than the sum of its proper divisors (1).

396898013 is an equidigital number, since it uses as much as digits as its factorization.

396898013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 279936, while the sum is 47.

The square root of 396898013 is about 19922.2993903816. The cubic root of 396898013 is about 734.8967186390.

The spelling of 396898013 in words is "three hundred ninety-six million, eight hundred ninety-eight thousand, thirteen".