63197707 has 2 divisors, whose sum is σ = 63197708. Its totient is φ = 63197706.

The previous prime is 63197663. The next prime is 63197711. The reversal of 63197707 is 70779136.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63197707 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 63197707.

It is not a weakly prime, because it can be changed into another prime (63197737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31598853 + 31598854.

It is an arithmetic number, because the mean of its divisors is an integer number (31598854).

Almost surely, 2^63197707 is an apocalyptic number.

63197707 is a deficient number, since it is larger than the sum of its proper divisors (1).

63197707 is an equidigital number, since it uses as much as digits as its factorization.

63197707 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 55566, while the sum is 40.

The square root of 63197707 is about 7949.6985477438. The cubic root of 63197707 is about 398.3215228880.

The spelling of 63197707 in words is "sixty-three million, one hundred ninety-seven thousand, seven hundred seven".