396161197 has 2 divisors, whose sum is σ = 396161198. Its totient is φ = 396161196.

The previous prime is 396161137. The next prime is 396161219. The reversal of 396161197 is 791161693.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 260531881 + 135629316 = 16141^2 + 11646^2 .

It is a cyclic number.

It is not a de Polignac number, because 396161197 - 2¹⁹ = 395636909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (396161137) 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, 198080598 + 198080599.

It is an arithmetic number, because the mean of its divisors is an integer number (198080599).

Almost surely, 2^396161197 is an apocalyptic number.

It is an amenable number.

396161197 is a deficient number, since it is larger than the sum of its proper divisors (1).

396161197 is an equidigital number, since it uses as much as digits as its factorization.

396161197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 61236, while the sum is 43.

The square root of 396161197 is about 19903.7985570594. The cubic root of 396161197 is about 734.4416738789.

The spelling of 396161197 in words is "three hundred ninety-six million, one hundred sixty-one thousand, one hundred ninety-seven".