856288 has 12 divisors (see below), whose sum is σ = 1685880. Its totient is φ = 428128.

The previous prime is 856279. The next prime is 856301. The reversal of 856288 is 882658.

It is a congruent number.

It is an unprimeable number.

856288 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 (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13348 + ... + 13411.

It is an arithmetic number, because the mean of its divisors is an integer number (140490).

2⁸⁵⁶²⁸⁸ is an apocalyptic number.

It is an amenable number.

856288 is a deficient number, since it is larger than the sum of its proper divisors (829592).

856288 is a wasteful number, since it uses less digits than its factorization.

856288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26769 (or 26761 counting only the distinct ones).

The product of its digits is 30720, while the sum is 37.

The square root of 856288 is about 925.3583089809. The cubic root of 856288 is about 94.9598352835.

The spelling of 856288 in words is "eight hundred fifty-six thousand, two hundred eighty-eight".