850641 has 16 divisors (see below), whose sum is σ = 1252800. Its totient is φ = 509120.

The previous prime is 850637. The next prime is 850673. The reversal of 850641 is 146058.

It is a cyclic number.

It is not a de Polignac number, because 850641 - 2² = 850637 is a prime.

It is a super-2 number, since 2×850641² = 1447180221762, which contains 22 as substring.

It is a nialpdrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (850631) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4831 + ... + 5003.

It is an arithmetic number, because the mean of its divisors is an integer number (78300).

2⁸⁵⁰⁶⁴¹ is an apocalyptic number.

It is an amenable number.

850641 is a deficient number, since it is larger than the sum of its proper divisors (402159).

850641 is a wasteful number, since it uses less digits than its factorization.

850641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336.

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 850641 is about 922.3020112740. The cubic root of 850641 is about 94.7506294586.

Adding to 850641 its reverse (146058), we get a palindrome (996699).

The spelling of 850641 in words is "eight hundred fifty thousand, six hundred forty-one".