63920678 has 8 divisors (see below), whose sum is σ = 96830640. Its totient is φ = 31643800.

The previous prime is 63920653. The next prime is 63920687. The reversal of 63920678 is 87602936.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 158018 + ... + 158421.

It is an arithmetic number, because the mean of its divisors is an integer number (12103830).

Almost surely, 2^63920678 is an apocalyptic number.

63920678 is a deficient number, since it is larger than the sum of its proper divisors (32909962).

63920678 is a wasteful number, since it uses less digits than its factorization.

63920678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316542.

The product of its (nonzero) digits is 108864, while the sum is 41.

The square root of 63920678 is about 7995.0408379195. The cubic root of 63920678 is about 399.8346775139.

The spelling of 63920678 in words is "sixty-three million, nine hundred twenty thousand, six hundred seventy-eight".