853310665 has 16 divisors (see below), whose sum is σ = 1092135312. Its totient is φ = 637794304.

The previous prime is 853310663. The next prime is 853310669. The reversal of 853310665 is 566013358.

It can be written as a sum of positive squares in 8 ways, for example, as 4112784 + 849197881 = 2028^2 + 29141^2 .

It is not a de Polignac number, because 853310665 - 2¹ = 853310663 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (853310663) 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 15 ways as a sum of consecutive naturals, for example, 24994 + ... + 48283.

It is an arithmetic number, because the mean of its divisors is an integer number (68258457).

Almost surely, 2^853310665 is an apocalyptic number.

853310665 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

853310665 is a deficient number, since it is larger than the sum of its proper divisors (238824647).

853310665 is a wasteful number, since it uses less digits than its factorization.

853310665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73436.

The product of its (nonzero) digits is 64800, while the sum is 37.

The square root of 853310665 is about 29211.4817323600. The cubic root of 853310665 is about 948.4964822852.

The spelling of 853310665 in words is "eight hundred fifty-three million, three hundred ten thousand, six hundred sixty-five".