850445 has 8 divisors (see below), whose sum is σ = 1048344. Its totient is φ = 661824.

The previous prime is 850439. The next prime is 850453. The reversal of 850445 is 544058.

It can be written as a sum of positive squares in 4 ways, for example, as 70756 + 779689 = 266^2 + 883^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 850445 - 2⁸ = 850189 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 (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2114 + ... + 2483.

It is an arithmetic number, because the mean of its divisors is an integer number (131043).

2⁸⁵⁰⁴⁴⁵ is an apocalyptic number.

It is an amenable number.

850445 is a deficient number, since it is larger than the sum of its proper divisors (197899).

850445 is a wasteful number, since it uses less digits than its factorization.

850445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4639.

The product of its (nonzero) digits is 3200, while the sum is 26.

The square root of 850445 is about 922.1957492854. The cubic root of 850445 is about 94.7433515941.

The spelling of 850445 in words is "eight hundred fifty thousand, four hundred forty-five".