8205842 has 8 divisors (see below), whose sum is σ = 12510732. Its totient is φ = 4035600.

The previous prime is 8205839. The next prime is 8205859. The reversal of 8205842 is 2485028.

It can be written as a sum of positive squares in 2 ways, for example, as 7946761 + 259081 = 2819^2 + 509^2 .

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

It is a super-4 number, since 4×8205842⁴ (a number of 29 digits) contains 4444 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33509 + ... + 33752.

Almost surely, 2^8205842 is an apocalyptic number.

8205842 is a deficient number, since it is larger than the sum of its proper divisors (4304890).

8205842 is a wasteful number, since it uses less digits than its factorization.

8205842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67324.

The product of its (nonzero) digits is 5120, while the sum is 29.

The square root of 8205842 is about 2864.5840884847. The cubic root of 8205842 is about 201.7008446349.

The spelling of 8205842 in words is "eight million, two hundred five thousand, eight hundred forty-two".