63979678 has 8 divisors (see below), whose sum is σ = 109679472. Its totient is φ = 27419856.

The previous prime is 63979673. The next prime is 63979711. The reversal of 63979678 is 87697936.

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 (63979673) 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, 2284975 + ... + 2285002.

It is an arithmetic number, because the mean of its divisors is an integer number (13709934).

Almost surely, 2^63979678 is an apocalyptic number.

63979678 is a deficient number, since it is larger than the sum of its proper divisors (45699794).

63979678 is a wasteful number, since it uses less digits than its factorization.

63979678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4569986.

The product of its digits is 3429216, while the sum is 55.

The square root of 63979678 is about 7998.7297741579. The cubic root of 63979678 is about 399.9576580180.

The spelling of 63979678 in words is "sixty-three million, nine hundred seventy-nine thousand, six hundred seventy-eight".