396507197 has 2 divisors, whose sum is σ = 396507198. Its totient is φ = 396507196.

The previous prime is 396507179. The next prime is 396507233. The reversal of 396507197 is 791705693.

It is a happy number.

Together with previous prime (396507179) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 342028036 + 54479161 = 18494^2 + 7381^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-396507197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (396507997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198253598 + 198253599.

It is an arithmetic number, because the mean of its divisors is an integer number (198253599).

Almost surely, 2^396507197 is an apocalyptic number.

It is an amenable number.

396507197 is a deficient number, since it is larger than the sum of its proper divisors (1).

396507197 is an equidigital number, since it uses as much as digits as its factorization.

396507197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 357210, while the sum is 47.

The square root of 396507197 is about 19912.4884682955. The cubic root of 396507197 is about 734.6554276712.

The spelling of 396507197 in words is "three hundred ninety-six million, five hundred seven thousand, one hundred ninety-seven".