857314709 has 16 divisors (see below), whose sum is σ = 919029888. Its totient is φ = 796902912.

The previous prime is 857314699. The next prime is 857314727. The reversal of 857314709 is 907413758.

857314709 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 857314709 - 2²⁰ = 856266133 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 857314709.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (857314739) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 914489 + ... + 915425.

It is an arithmetic number, because the mean of its divisors is an integer number (57439368).

Almost surely, 2^857314709 is an apocalyptic number.

It is an amenable number.

857314709 is a deficient number, since it is larger than the sum of its proper divisors (61715179).

857314709 is a wasteful number, since it uses less digits than its factorization.

857314709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1564.

The product of its (nonzero) digits is 211680, while the sum is 44.

The square root of 857314709 is about 29279.9369705606. The cubic root of 857314709 is about 949.9777313340.

The spelling of 857314709 in words is "eight hundred fifty-seven million, three hundred fourteen thousand, seven hundred nine".