68942 has 4 divisors (see below), whose sum is σ = 103416. Its totient is φ = 34470.

The previous prime is 68927. The next prime is 68947. The reversal of 68942 is 24986.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68947) by changing a digit.

68942 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17234 + ... + 17237.

It is an arithmetic number, because the mean of its divisors is an integer number (25854).

2⁶⁸⁹⁴² is an apocalyptic number.

68942 is a deficient number, since it is larger than the sum of its proper divisors (34474).

68942 is a wasteful number, since it uses less digits than its factorization.

68942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34473.

The product of its digits is 3456, while the sum is 29.

The square root of 68942 is about 262.5680864081. The cubic root of 68942 is about 41.0041637651.

Subtracting from 68942 its reverse (24986), we obtain a triangular number (43956 = T₂₉₆).

The spelling of 68942 in words is "sixty-eight thousand, nine hundred forty-two".