845656 has 16 divisors (see below), whose sum is σ = 1812240. Its totient is φ = 362400.

The previous prime is 845653. The next prime is 845657. The reversal of 845656 is 656548.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (845653) by changing a digit.

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, 7495 + ... + 7606.

It is an arithmetic number, because the mean of its divisors is an integer number (113265).

2⁸⁴⁵⁶⁵⁶ is an apocalyptic number.

It is an amenable number.

845656 is an abundant number, since it is smaller than the sum of its proper divisors (966584).

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

845656 is a wasteful number, since it uses less digits than its factorization.

845656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15114 (or 15110 counting only the distinct ones).

The product of its digits is 28800, while the sum is 34.

The square root of 845656 is about 919.5955632777. The cubic root of 845656 is about 94.5651781067.

The spelling of 845656 in words is "eight hundred forty-five thousand, six hundred fifty-six".