799942 has 16 divisors (see below), whose sum is σ = 1410192. Its totient is φ = 335520.

The previous prime is 799921. The next prime is 799949. The reversal of 799942 is 249997.

It is a junction number, because it is equal to n+sod(n) for n = 799895 and 799904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (799949) by changing a digit.

799942 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 in 7 ways as a sum of consecutive naturals, for example, 1113 + ... + 1684.

It is an arithmetic number, because the mean of its divisors is an integer number (88137).

2⁷⁹⁹⁹⁴² is an apocalyptic number.

799942 is a deficient number, since it is larger than the sum of its proper divisors (610250).

799942 is a wasteful number, since it uses less digits than its factorization.

799942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2823.

The product of its digits is 40824, while the sum is 40.

The square root of 799942 is about 894.3947674266. The cubic root of 799942 is about 92.8295331834.

Subtracting from 799942 its reverse (249997), we obtain a palindrome (549945).

The spelling of 799942 in words is "seven hundred ninety-nine thousand, nine hundred forty-two".