63858942 has 56 divisors (see below), whose sum is σ = 164159856. Its totient is φ = 18242496.

The previous prime is 63858941. The next prime is 63858961. The reversal of 63858942 is 24985836.

63858942 is a `hidden beast` number, since 63 + 8 + 589 + 4 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63858941) by changing a digit.

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 27 ways as a sum of consecutive naturals, for example, 7078 + ... + 13334.

It is an arithmetic number, because the mean of its divisors is an integer number (2931426).

Almost surely, 2^63858942 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63858942, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82079928).

63858942 is an abundant number, since it is smaller than the sum of its proper divisors (100300914).

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

63858942 is an equidigital number, since it uses as much as digits as its factorization.

63858942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6284 (or 6269 counting only the distinct ones).

The product of its digits is 414720, while the sum is 45.

The square root of 63858942 is about 7991.1790118855. The cubic root of 63858942 is about 399.7059130017.

The spelling of 63858942 in words is "sixty-three million, eight hundred fifty-eight thousand, nine hundred forty-two".