63942 has 8 divisors (see below), whose sum is σ = 127896. Its totient is φ = 21312.

The previous prime is 63929. The next prime is 63949. The reversal of 63942 is 24936.

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

63942 is an admirable number.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a d-powerful number, because it can be written as 6² + 3¹⁰ + 9³ + 4⁶ + 2⁵ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63949) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5323 + ... + 5334.

It is an arithmetic number, because the mean of its divisors is an integer number (15987).

2⁶³⁹⁴² is an apocalyptic number.

63942 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63948).

63942 is a wasteful number, since it uses less digits than its factorization.

63942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10662.

The product of its digits is 1296, while the sum is 24.

The square root of 63942 is about 252.8675542651. The cubic root of 63942 is about 39.9879130147.

The spelling of 63942 in words is "sixty-three thousand, nine hundred forty-two".