396784957363177 has 2 divisors, whose sum is σ = 396784957363178. Its totient is φ = 396784957363176.

The previous prime is 396784957363159. The next prime is 396784957363259. The reversal of 396784957363177 is 771363759487693.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 316502210479081 + 80282746884096 = 17790509^2 + 8960064^2 .

It is a cyclic number.

It is not a de Polignac number, because 396784957363177 - 2⁷ = 396784957363049 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 396784957363094 and 396784957363103.

It is not a weakly prime, because it can be changed into another prime (396784997363177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198392478681588 + 198392478681589.

It is an arithmetic number, because the mean of its divisors is an integer number (198392478681589).

Almost surely, 2^{396784957363177} is an apocalyptic number.

It is an amenable number.

396784957363177 is a deficient number, since it is larger than the sum of its proper divisors (1).

396784957363177 is an equidigital number, since it uses as much as digits as its factorization.

396784957363177 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30245685120, while the sum is 85.

The spelling of 396784957363177 in words is "three hundred ninety-six trillion, seven hundred eighty-four billion, nine hundred fifty-seven million, three hundred sixty-three thousand, one hundred seventy-seven".