396716197 has 2 divisors, whose sum is σ = 396716198. Its totient is φ = 396716196.

The previous prime is 396716189. The next prime is 396716209. The reversal of 396716197 is 791617693.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 365344996 + 31371201 = 19114^2 + 5601^2 .

It is a cyclic number.

It is not a de Polignac number, because 396716197 - 2³ = 396716189 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 396716197.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (396716107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198358098 + 198358099.

It is an arithmetic number, because the mean of its divisors is an integer number (198358099).

Almost surely, 2^396716197 is an apocalyptic number.

It is an amenable number.

396716197 is a deficient number, since it is larger than the sum of its proper divisors (1).

396716197 is an equidigital number, since it uses as much as digits as its factorization.

396716197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 428652, while the sum is 49.

The square root of 396716197 is about 19917.7357397873. The cubic root of 396716197 is about 734.7844846096.

It can be divided in two parts, 3967 and 16197, that added together give a square (20164 = 142²).

The spelling of 396716197 in words is "three hundred ninety-six million, seven hundred sixteen thousand, one hundred ninety-seven".