63661097 has 2 divisors, whose sum is σ = 63661098. Its totient is φ = 63661096.

The previous prime is 63661057. The next prime is 63661099. The reversal of 63661097 is 79016636.

63661097 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63616576 + 44521 = 7976^2 + 211^2 .

It is a cyclic number.

It is not a de Polignac number, because 63661097 - 2¹⁰ = 63660073 is a prime.

Together with 63661099, 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 63661097.

It is not a weakly prime, because it can be changed into another prime (63661099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31830548 + 31830549.

It is an arithmetic number, because the mean of its divisors is an integer number (31830549).

Almost surely, 2^63661097 is an apocalyptic number.

It is an amenable number.

63661097 is a deficient number, since it is larger than the sum of its proper divisors (1).

63661097 is an equidigital number, since it uses as much as digits as its factorization.

63661097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40824, while the sum is 38.

The square root of 63661097 is about 7978.7904471793. The cubic root of 63661097 is about 399.2927021449.

The spelling of 63661097 in words is "sixty-three million, six hundred sixty-one thousand, ninety-seven".