856430716 has 12 divisors (see below), whose sum is σ = 1521123688. Its totient is φ = 421823952.

The previous prime is 856430711. The next prime is 856430717. The reversal of 856430716 is 617034658.

It is a happy number.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (856430711) 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 3 ways as a sum of consecutive naturals, for example, 1597551 + ... + 1598086.

Almost surely, 2^856430716 is an apocalyptic number.

It is an amenable number.

856430716 is a deficient number, since it is larger than the sum of its proper divisors (664692972).

856430716 is a wasteful number, since it uses less digits than its factorization.

856430716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3195708 (or 3195706 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 856430716 is about 29264.8375358552. The cubic root of 856430716 is about 949.6511058616.

The spelling of 856430716 in words is "eight hundred fifty-six million, four hundred thirty thousand, seven hundred sixteen".