856970683 has 2 divisors, whose sum is σ = 856970684. Its totient is φ = 856970682.

The previous prime is 856970573. The next prime is 856970711. The reversal of 856970683 is 386079658.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 856970683 - 2²¹ = 854873531 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 856970683.

It is not a weakly prime, because it can be changed into another prime (856970783) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 428485341 + 428485342.

It is an arithmetic number, because the mean of its divisors is an integer number (428485342).

Almost surely, 2^856970683 is an apocalyptic number.

856970683 is a deficient number, since it is larger than the sum of its proper divisors (1).

856970683 is an equidigital number, since it uses as much as digits as its factorization.

856970683 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2177280, while the sum is 52.

The square root of 856970683 is about 29274.0616075050. The cubic root of 856970683 is about 949.8506442947.

The spelling of 856970683 in words is "eight hundred fifty-six million, nine hundred seventy thousand, six hundred eighty-three".