845317870 has 16 divisors (see below), whose sum is σ = 1546517088. Its totient is φ = 332583840.

The previous prime is 845317861. The next prime is 845317883. The reversal of 845317870 is 78713548.

845317870 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 692274 + ... + 693493.

It is an arithmetic number, because the mean of its divisors is an integer number (96657318).

Almost surely, 2^845317870 is an apocalyptic number.

845317870 is a deficient number, since it is larger than the sum of its proper divisors (701199218).

845317870 is a wasteful number, since it uses less digits than its factorization.

845317870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1385835.

The product of its (nonzero) digits is 188160, while the sum is 43.

The square root of 845317870 is about 29074.3507236189. The cubic root of 845317870 is about 945.5257267128.

The spelling of 845317870 in words is "eight hundred forty-five million, three hundred seventeen thousand, eight hundred seventy".