63797219 has 2 divisors, whose sum is σ = 63797220. Its totient is φ = 63797218.

The previous prime is 63797207. The next prime is 63797221. The reversal of 63797219 is 91279736.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63797219 is a prime.

It is a super-2 number, since 2×63797219² = 8140170304267922, which contains 22 as substring.

Together with 63797221, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 63797219.

It is not a weakly prime, because it can be changed into another prime (63797299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31898609 + 31898610.

It is an arithmetic number, because the mean of its divisors is an integer number (31898610).

Almost surely, 2^63797219 is an apocalyptic number.

63797219 is a deficient number, since it is larger than the sum of its proper divisors (1).

63797219 is an equidigital number, since it uses as much as digits as its factorization.

63797219 is an evil number, because the sum of its binary digits is even.

The product of its digits is 142884, while the sum is 44.

The square root of 63797219 is about 7987.3161324690. The cubic root of 63797219 is about 399.5770926143.

The spelling of 63797219 in words is "sixty-three million, seven hundred ninety-seven thousand, two hundred nineteen".