63878367 has 16 divisors (see below), whose sum is σ = 103064832. Its totient is φ = 34354560.

The previous prime is 63878327. The next prime is 63878371. The reversal of 63878367 is 76387836.

It is not a de Polignac number, because 63878367 - 2¹² = 63874271 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63878327) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89109 + ... + 89822.

It is an arithmetic number, because the mean of its divisors is an integer number (6441552).

Almost surely, 2^63878367 is an apocalyptic number.

63878367 is a deficient number, since it is larger than the sum of its proper divisors (39186465).

63878367 is a wasteful number, since it uses less digits than its factorization.

63878367 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178958.

The product of its digits is 1016064, while the sum is 48.

The square root of 63878367 is about 7992.3943221040. The cubic root of 63878367 is about 399.7464372154.

The spelling of 63878367 in words is "sixty-three million, eight hundred seventy-eight thousand, three hundred sixty-seven".