63722297 has 2 divisors, whose sum is σ = 63722298. Its totient is φ = 63722296.

The previous prime is 63722279. The next prime is 63722299. The reversal of 63722297 is 79222736.

It is a happy number.

Together with previous prime (63722279) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51998521 + 11723776 = 7211^2 + 3424^2 .

It is a cyclic number.

It is not a de Polignac number, because 63722297 - 2⁸ = 63722041 is a prime.

It is a super-2 number, since 2×63722297² = 8121062269912418, which contains 22 as substring.

Together with 63722299, 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 63722297.

It is not a weakly prime, because it can be changed into another prime (63722299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31861148 + 31861149.

It is an arithmetic number, because the mean of its divisors is an integer number (31861149).

Almost surely, 2^63722297 is an apocalyptic number.

It is an amenable number.

63722297 is a deficient number, since it is larger than the sum of its proper divisors (1).

63722297 is an equidigital number, since it uses as much as digits as its factorization.

63722297 is an evil number, because the sum of its binary digits is even.

The product of its digits is 63504, while the sum is 38.

The square root of 63722297 is about 7982.6246936706. The cubic root of 63722297 is about 399.4206132661.

The spelling of 63722297 in words is "sixty-three million, seven hundred twenty-two thousand, two hundred ninety-seven".