856488 has 32 divisors (see below), whose sum is σ = 2165760. Its totient is φ = 282240.

The previous prime is 856487. The next prime is 856507. The reversal of 856488 is 884658.

It is not an unprimeable number, because it can be changed into a prime (856483) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2908 + ... + 3188.

It is an arithmetic number, because the mean of its divisors is an integer number (67680).

2⁸⁵⁶⁴⁸⁸ is an apocalyptic number.

It is an amenable number.

856488 is an abundant number, since it is smaller than the sum of its proper divisors (1309272).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

856488 is a wasteful number, since it uses less digits than its factorization.

856488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417 (or 413 counting only the distinct ones).

The product of its digits is 61440, while the sum is 39.

The square root of 856488 is about 925.4663689189. The cubic root of 856488 is about 94.9672278464.

The spelling of 856488 in words is "eight hundred fifty-six thousand, four hundred eighty-eight".