396280771 has 2 divisors, whose sum is σ = 396280772. Its totient is φ = 396280770.

The previous prime is 396280763. The next prime is 396280783. The reversal of 396280771 is 177082693.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 396280771 - 2³ = 396280763 is a prime.

It is not a weakly prime, because it can be changed into another prime (396280741) 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, 198140385 + 198140386.

It is an arithmetic number, because the mean of its divisors is an integer number (198140386).

Almost surely, 2^396280771 is an apocalyptic number.

396280771 is a deficient number, since it is larger than the sum of its proper divisors (1).

396280771 is an equidigital number, since it uses as much as digits as its factorization.

396280771 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 127008, while the sum is 43.

The square root of 396280771 is about 19906.8021289207. The cubic root of 396280771 is about 734.5155590341.

The spelling of 396280771 in words is "three hundred ninety-six million, two hundred eighty thousand, seven hundred seventy-one".