63216278 has 8 divisors (see below), whose sum is σ = 97029768. Its totient is φ = 30873024.

The previous prime is 63216271. The next prime is 63216281. The reversal of 63216278 is 87261236.

It is a happy number.

63216278 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63216271) 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 3 ways as a sum of consecutive naturals, for example, 367451 + ... + 367622.

It is an arithmetic number, because the mean of its divisors is an integer number (12128721).

Almost surely, 2^63216278 is an apocalyptic number.

63216278 is a deficient number, since it is larger than the sum of its proper divisors (33813490).

63216278 is a wasteful number, since it uses less digits than its factorization.

63216278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 735118.

The product of its digits is 24192, while the sum is 35.

The square root of 63216278 is about 7950.8664936597. The cubic root of 63216278 is about 398.3605354034.

The spelling of 63216278 in words is "sixty-three million, two hundred sixteen thousand, two hundred seventy-eight".