63967965 has 16 divisors (see below), whose sum is σ = 107736000. Its totient is φ = 32320512.

The previous prime is 63967963. The next prime is 63967993. The reversal of 63967965 is 56976936.

63967965 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 63967965 - 2¹ = 63967963 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63967963) 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 in 15 ways as a sum of consecutive naturals, for example, 111940 + ... + 112509.

It is an arithmetic number, because the mean of its divisors is an integer number (6733500).

Almost surely, 2^63967965 is an apocalyptic number.

It is an amenable number.

63967965 is a deficient number, since it is larger than the sum of its proper divisors (43768035).

63967965 is a wasteful number, since it uses less digits than its factorization.

63967965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224476.

The product of its digits is 1837080, while the sum is 51.

The square root of 63967965 is about 7997.9975618901. The cubic root of 63967965 is about 399.9332492781.

The spelling of 63967965 in words is "sixty-three million, nine hundred sixty-seven thousand, nine hundred sixty-five".