89942 has 4 divisors (see below), whose sum is σ = 134916. Its totient is φ = 44970.

The previous prime is 89939. The next prime is 89959. The reversal of 89942 is 24998.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 89899 and 89908.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22484 + ... + 22487.

It is an arithmetic number, because the mean of its divisors is an integer number (33729).

2⁸⁹⁹⁴² is an apocalyptic number.

89942 is a deficient number, since it is larger than the sum of its proper divisors (44974).

89942 is a wasteful number, since it uses less digits than its factorization.

89942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44973.

The product of its digits is 5184, while the sum is 32.

The square root of 89942 is about 299.9033177542. The cubic root of 89942 is about 44.8044186756.

It can be divided in two parts, 89 and 942, that multiplied together give a palindrome (83838).

The spelling of 89942 in words is "eighty-nine thousand, nine hundred forty-two".