63197801 has 2 divisors, whose sum is σ = 63197802. Its totient is φ = 63197800.

The previous prime is 63197773. The next prime is 63197803. The reversal of 63197801 is 10879136.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43626025 + 19571776 = 6605^2 + 4424^2 .

It is a cyclic number.

It is not a de Polignac number, because 63197801 - 2⁶ = 63197737 is a prime.

Together with 63197803, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (63197803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31598900 + 31598901.

It is an arithmetic number, because the mean of its divisors is an integer number (31598901).

Almost surely, 2^63197801 is an apocalyptic number.

It is an amenable number.

63197801 is a deficient number, since it is larger than the sum of its proper divisors (1).

63197801 is an equidigital number, since it uses as much as digits as its factorization.

63197801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 63197801 is about 7949.7044599155. The cubic root of 63197801 is about 398.3217203752.

The spelling of 63197801 in words is "sixty-three million, one hundred ninety-seven thousand, eight hundred one".