856970346 has 32 divisors (see below), whose sum is σ = 1740257280. Its totient is φ = 281304576.

The previous prime is 856970341. The next prime is 856970347. The reversal of 856970346 is 643079658.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 856970295 and 856970304.

It is not an unprimeable number, because it can be changed into a prime (856970341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100290 + ... + 108498.

It is an arithmetic number, because the mean of its divisors is an integer number (54383040).

Almost surely, 2^856970346 is an apocalyptic number.

856970346 is an abundant number, since it is smaller than the sum of its proper divisors (883286934).

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

856970346 is a wasteful number, since it uses less digits than its factorization.

856970346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8478.

The product of its (nonzero) digits is 1088640, while the sum is 48.

The square root of 856970346 is about 29274.0558515557. The cubic root of 856970346 is about 949.8505197865.

The spelling of 856970346 in words is "eight hundred fifty-six million, nine hundred seventy thousand, three hundred forty-six".