842386 has 8 divisors (see below), whose sum is σ = 1294524. Its totient is φ = 410880.

The previous prime is 842383. The next prime is 842393. The reversal of 842386 is 683248.

It is a happy number.

842386 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 697225 + 145161 = 835^2 + 381^2 .

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

It is a super-2 number, since 2×842386² = 1419228345992, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (842383) 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, 5055 + ... + 5218.

2⁸⁴²³⁸⁶ is an apocalyptic number.

842386 is a deficient number, since it is larger than the sum of its proper divisors (452138).

842386 is a wasteful number, since it uses less digits than its factorization.

842386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10316.

The product of its digits is 9216, while the sum is 31.

The square root of 842386 is about 917.8158856764. The cubic root of 842386 is about 94.4431318029.

The spelling of 842386 in words is "eight hundred forty-two thousand, three hundred eighty-six".