63968335 has 8 divisors (see below), whose sum is σ = 77191920. Its totient is φ = 50888064.

The previous prime is 63968293. The next prime is 63968339. The reversal of 63968335 is 53386936.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 63968335 - 2¹⁵ = 63935567 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 63968291 and 63968300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63968339) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34842 + ... + 36631.

It is an arithmetic number, because the mean of its divisors is an integer number (9648990).

Almost surely, 2^63968335 is an apocalyptic number.

63968335 is a deficient number, since it is larger than the sum of its proper divisors (13223585).

63968335 is a wasteful number, since it uses less digits than its factorization.

63968335 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71657.

The product of its digits is 349920, while the sum is 43.

The square root of 63968335 is about 7998.0206926464. The cubic root of 63968335 is about 399.9340203673.

The spelling of 63968335 in words is "sixty-three million, nine hundred sixty-eight thousand, three hundred thirty-five".