396309161 has 2 divisors, whose sum is σ = 396309162. Its totient is φ = 396309160.

The previous prime is 396309119. The next prime is 396309181. The reversal of 396309161 is 161903693.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 390457600 + 5851561 = 19760^2 + 2419^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-396309161 is a prime.

It is not a weakly prime, because it can be changed into another prime (396309181) 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, 198154580 + 198154581.

It is an arithmetic number, because the mean of its divisors is an integer number (198154581).

Almost surely, 2^396309161 is an apocalyptic number.

It is an amenable number.

396309161 is a deficient number, since it is larger than the sum of its proper divisors (1).

396309161 is an equidigital number, since it uses as much as digits as its factorization.

396309161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26244, while the sum is 38.

The square root of 396309161 is about 19907.5151889933. The cubic root of 396309161 is about 734.5330991221.

The spelling of 396309161 in words is "three hundred ninety-six million, three hundred nine thousand, one hundred sixty-one".