87942 has 8 divisors (see below), whose sum is σ = 175896. Its totient is φ = 29312.

The previous prime is 87931. The next prime is 87943. The reversal of 87942 is 24978.

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

87942 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87943) 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, 7323 + ... + 7334.

It is an arithmetic number, because the mean of its divisors is an integer number (21987).

2⁸⁷⁹⁴² is an apocalyptic number.

87942 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 (87948).

87942 is a wasteful number, since it uses less digits than its factorization.

87942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14662.

The product of its digits is 4032, while the sum is 30.

The square root of 87942 is about 296.5501643904. The cubic root of 87942 is about 44.4698276300.

It can be divided in two parts, 8 and 7942, that multiplied together give a palindrome (63536).

The spelling of 87942 in words is "eighty-seven thousand, nine hundred forty-two".