850713889 has 3 divisors (see below), whose sum is σ = 850743057. Its totient is φ = 850684722.

The previous prime is 850713883. The next prime is 850713911. The reversal of 850713889 is 988317058.

The square root of 850713889 is 29167.

It is a perfect power (a square), and thus also a powerful number.

850713889 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 988317058 = 2 ⋅494158529.

It is not a de Polignac number, because 850713889 - 2⁷ = 850713761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (850713883) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 14584 + ... + 43750.

It is an arithmetic number, because the mean of its divisors is an integer number (283581019).

Almost surely, 2^850713889 is an apocalyptic number.

850713889 is the 29167-th square number.

850713889 is the 14584-th centered octagonal number.

It is an amenable number.

850713889 is a deficient number, since it is larger than the sum of its proper divisors (29168).

850713889 is an frugal number, since it uses more digits than its factorization.

850713889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58334 (or 29167 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 49.

The cubic root of 850713889 is about 947.5333568502.

Multiplying 850713889 by its sum of digits (49), we get a square (41684980561 = 204169²).

The spelling of 850713889 in words is "eight hundred fifty million, seven hundred thirteen thousand, eight hundred eighty-nine".