396716797 has 2 divisors, whose sum is σ = 396716798. Its totient is φ = 396716796.

The previous prime is 396716783. The next prime is 396716807. The reversal of 396716797 is 797617693.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 381459961 + 15256836 = 19531^2 + 3906^2 .

It is a cyclic number.

It is not a de Polignac number, because 396716797 - 2⁷ = 396716669 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (396716197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198358398 + 198358399.

It is an arithmetic number, because the mean of its divisors is an integer number (198358399).

Almost surely, 2^396716797 is an apocalyptic number.

It is an amenable number.

396716797 is a deficient number, since it is larger than the sum of its proper divisors (1).

396716797 is an equidigital number, since it uses as much as digits as its factorization.

396716797 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3000564, while the sum is 55.

The square root of 396716797 is about 19917.7508017346. The cubic root of 396716797 is about 734.7848550427.

The spelling of 396716797 in words is "three hundred ninety-six million, seven hundred sixteen thousand, seven hundred ninety-seven".