857848 has 16 divisors (see below), whose sum is σ = 1621080. Its totient is φ = 425568.

The previous prime is 857839. The next prime is 857851. The reversal of 857848 is 848758.

It is a super-2 number, since 2×857848² = 1471806382208, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 857848.

It is a congruent number.

It is an unprimeable number.

857848 is an untouchable number, because it is not equal to the sum of proper divisors of any 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 in 3 ways as a sum of consecutive naturals, for example, 915 + ... + 1597.

2⁸⁵⁷⁸⁴⁸ is an apocalyptic number.

It is an amenable number.

857848 is a deficient number, since it is larger than the sum of its proper divisors (763232).

857848 is a wasteful number, since it uses less digits than its factorization.

857848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 846 (or 842 counting only the distinct ones).

The product of its digits is 71680, while the sum is 40.

The square root of 857848 is about 926.2008421503. The cubic root of 857848 is about 95.0174667791.

The spelling of 857848 in words is "eight hundred fifty-seven thousand, eight hundred forty-eight".