891838041 has 16 divisors (see below), whose sum is σ = 1261854720. Its totient is φ = 559066640.

The previous prime is 891838033. The next prime is 891838063. The reversal of 891838041 is 140838198.

891838041 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 891838041 - 2³ = 891838033 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 891837984 and 891838002.

It is not an unprimeable number, because it can be changed into a prime (891838001) 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, 105465 + ... + 113606.

It is an arithmetic number, because the mean of its divisors is an integer number (78865920).

Almost surely, 2^891838041 is an apocalyptic number.

It is an amenable number.

891838041 is a deficient number, since it is larger than the sum of its proper divisors (370016679).

891838041 is a wasteful number, since it uses less digits than its factorization.

891838041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219156.

The product of its (nonzero) digits is 55296, while the sum is 42.

The square root of 891838041 is about 29863.6575288426. The cubic root of 891838041 is about 962.5618930458.

The spelling of 891838041 in words is "eight hundred ninety-one million, eight hundred thirty-eight thousand, forty-one".