850717485 has 56 divisors (see below), whose sum is σ = 1620744120. Its totient is φ = 426995712.

The previous prime is 850717481. The next prime is 850717493. The reversal of 850717485 is 584717058.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 130439241 + 720278244 = 11421^2 + 26838^2 .

It is not a de Polignac number, because 850717485 - 2² = 850717481 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 850717485.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (850717481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 55101 + ... + 68829.

Almost surely, 2^850717485 is an apocalyptic number.

850717485 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

850717485 is a deficient number, since it is larger than the sum of its proper divisors (770026635).

850717485 is a wasteful number, since it uses less digits than its factorization.

850717485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13769 (or 13754 counting only the distinct ones).

The product of its (nonzero) digits is 313600, while the sum is 45.

The square root of 850717485 is about 29167.0616449446. The cubic root of 850717485 is about 947.5346919348.

The spelling of 850717485 in words is "eight hundred fifty million, seven hundred seventeen thousand, four hundred eighty-five".