63968334 has 8 divisors (see below), whose sum is σ = 127936680. Its totient is φ = 21322776.

The previous prime is 63968293. The next prime is 63968339. The reversal of 63968334 is 43386936.

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

63968334 is an admirable number.

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

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5330689 + ... + 5330700.

It is an arithmetic number, because the mean of its divisors is an integer number (15992085).

Almost surely, 2^63968334 is an apocalyptic number.

63968334 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

63968334 is a wasteful number, since it uses less digits than its factorization.

63968334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10661394.

The product of its digits is 279936, while the sum is 42.

The square root of 63968334 is about 7998.0206301309. The cubic root of 63968334 is about 399.9340182833.

The spelling of 63968334 in words is "sixty-three million, nine hundred sixty-eight thousand, three hundred thirty-four".