850752605 has 4 divisors (see below), whose sum is σ = 1020903132. Its totient is φ = 680602080.

The previous prime is 850752599. The next prime is 850752611. The reversal of 850752605 is 506257058.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (850752599) and next prime (850752611).

It can be written as a sum of positive squares in 2 ways, for example, as 265983481 + 584769124 = 16309^2 + 24182^2 .

It is not a de Polignac number, because 850752605 - 2⁸ = 850752349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 85075256 + ... + 85075265.

It is an arithmetic number, because the mean of its divisors is an integer number (255225783).

Almost surely, 2^850752605 is an apocalyptic number.

It is an amenable number.

850752605 is a deficient number, since it is larger than the sum of its proper divisors (170150527).

850752605 is a wasteful number, since it uses less digits than its factorization.

850752605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170150526.

The product of its (nonzero) digits is 84000, while the sum is 38.

The square root of 850752605 is about 29167.6636877210. The cubic root of 850752605 is about 947.5477307172.

The spelling of 850752605 in words is "eight hundred fifty million, seven hundred fifty-two thousand, six hundred five".