63695321 has 2 divisors, whose sum is σ = 63695322. Its totient is φ = 63695320.

The previous prime is 63695309. The next prime is 63695327. The reversal of 63695321 is 12359636.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46389721 + 17305600 = 6811^2 + 4160^2 .

It is a cyclic number.

It is not a de Polignac number, because 63695321 - 2¹⁸ = 63433177 is a prime.

It is not a weakly prime, because it can be changed into another prime (63695327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31847660 + 31847661.

It is an arithmetic number, because the mean of its divisors is an integer number (31847661).

Almost surely, 2^63695321 is an apocalyptic number.

It is an amenable number.

63695321 is a deficient number, since it is larger than the sum of its proper divisors (1).

63695321 is an equidigital number, since it uses as much as digits as its factorization.

63695321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 29160, while the sum is 35.

The square root of 63695321 is about 7980.9348449915. The cubic root of 63695321 is about 399.3642421486.

The spelling of 63695321 in words is "sixty-three million, six hundred ninety-five thousand, three hundred twenty-one".