842611 has 16 divisors (see below), whose sum is σ = 1087488. Its totient is φ = 633600.

The previous prime is 842599. The next prime is 842617. The reversal of 842611 is 116248.

It is not a de Polignac number, because 842611 - 2⁷ = 842483 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (842617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2211 + ... + 2563.

It is an arithmetic number, because the mean of its divisors is an integer number (67968).

2⁸⁴²⁶¹¹ is an apocalyptic number.

842611 is a deficient number, since it is larger than the sum of its proper divisors (244877).

842611 is a wasteful number, since it uses less digits than its factorization.

842611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402.

The product of its digits is 384, while the sum is 22.

The square root of 842611 is about 917.9384510957. The cubic root of 842611 is about 94.4515395926.

Adding to 842611 its reverse (116248), we get a palindrome (958859).

The spelling of 842611 in words is "eight hundred forty-two thousand, six hundred eleven".