854860717 has 2 divisors, whose sum is σ = 854860718. Its totient is φ = 854860716.

The previous prime is 854860693. The next prime is 854860777. The reversal of 854860717 is 717068458.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 493328521 + 361532196 = 22211^2 + 19014^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-854860717 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (854860777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 427430358 + 427430359.

It is an arithmetic number, because the mean of its divisors is an integer number (427430359).

Almost surely, 2^854860717 is an apocalyptic number.

It is an amenable number.

854860717 is a deficient number, since it is larger than the sum of its proper divisors (1).

854860717 is an equidigital number, since it uses as much as digits as its factorization.

854860717 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 376320, while the sum is 46.

The square root of 854860717 is about 29238.0012483754. The cubic root of 854860717 is about 949.0704543846.

The spelling of 854860717 in words is "eight hundred fifty-four million, eight hundred sixty thousand, seven hundred seventeen".