63878382 has 24 divisors (see below), whose sum is σ = 143530296. Its totient is φ = 21292632.

The previous prime is 63878371. The next prime is 63878393. The reversal of 63878382 is 28387836.

63878382 is a `hidden beast` number, since 638 + 7 + 8 + 3 + 8 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (63878371) and next prime (63878393).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 65233 + ... + 66204.

It is an arithmetic number, because the mean of its divisors is an integer number (5980429).

Almost surely, 2^63878382 is an apocalyptic number.

63878382 is an abundant number, since it is smaller than the sum of its proper divisors (79651914).

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

63878382 is a wasteful number, since it uses less digits than its factorization.

63878382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131454 (or 131442 counting only the distinct ones).

The product of its digits is 387072, while the sum is 45.

The square root of 63878382 is about 7992.3952604961. The cubic root of 63878382 is about 399.7464685051.

The spelling of 63878382 in words is "sixty-three million, eight hundred seventy-eight thousand, three hundred eighty-two".