63965245 has 16 divisors (see below), whose sum is σ = 79483392. Its totient is φ = 49366080.

The previous prime is 63965227. The next prime is 63965269. The reversal of 63965245 is 54256936.

It is a de Polignac number, because none of the positive numbers 2^k-63965245 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 63965198 and 63965207.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86899 + ... + 87631.

It is an arithmetic number, because the mean of its divisors is an integer number (4967712).

Almost surely, 2^63965245 is an apocalyptic number.

It is an amenable number.

63965245 is a deficient number, since it is larger than the sum of its proper divisors (15518147).

63965245 is a wasteful number, since it uses less digits than its factorization.

63965245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1332.

The product of its digits is 194400, while the sum is 40.

The square root of 63965245 is about 7997.8275175200. The cubic root of 63965245 is about 399.9275806394.

The spelling of 63965245 in words is "sixty-three million, nine hundred sixty-five thousand, two hundred forty-five".