4100891 has 4 divisors (see below), whose sum is σ = 4188192. Its totient is φ = 4013592.

The previous prime is 4100881. The next prime is 4100909. The reversal of 4100891 is 1980014.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4100891 - 2¹⁰ = 4099867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4100881) 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 3 ways as a sum of consecutive naturals, for example, 43580 + ... + 43673.

It is an arithmetic number, because the mean of its divisors is an integer number (1047048).

Almost surely, 2^4100891 is an apocalyptic number.

4100891 is a deficient number, since it is larger than the sum of its proper divisors (87301).

4100891 is an equidigital number, since it uses as much as digits as its factorization.

4100891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87300.

The product of its (nonzero) digits is 288, while the sum is 23.

The square root of 4100891 is about 2025.0656779473. The cubic root of 4100891 is about 160.0636595641.

The spelling of 4100891 in words is "four million, one hundred thousand, eight hundred ninety-one".