836641 has 8 divisors (see below), whose sum is σ = 909440. Its totient is φ = 765072.

The previous prime is 836623. The next prime is 836657. The reversal of 836641 is 146638.

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 836641 - 2⁵ = 836609 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (836611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1576 + ... + 2038.

It is an arithmetic number, because the mean of its divisors is an integer number (113680).

2⁸³⁶⁶⁴¹ is an apocalyptic number.

It is an amenable number.

836641 is a deficient number, since it is larger than the sum of its proper divisors (72799).

836641 is a wasteful number, since it uses less digits than its factorization.

836641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 615.

The product of its digits is 3456, while the sum is 28.

The square root of 836641 is about 914.6808186466. The cubic root of 836641 is about 94.2279438617.

It can be divided in two parts, 83 and 6641, that added together give a square (6724 = 82²).

The spelling of 836641 in words is "eight hundred thirty-six thousand, six hundred forty-one".