4165891 has 8 divisors (see below), whose sum is σ = 4262400. Its totient is φ = 4070592.

The previous prime is 4165849. The next prime is 4165927. The reversal of 4165891 is 1985614.

4165891 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 4165891 - 2⁹ = 4165379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4165991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10686 + ... + 11068.

It is an arithmetic number, because the mean of its divisors is an integer number (532800).

Almost surely, 2^4165891 is an apocalyptic number.

4165891 is a deficient number, since it is larger than the sum of its proper divisors (96509).

4165891 is a wasteful number, since it uses less digits than its factorization.

4165891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 605.

The product of its digits is 8640, while the sum is 34.

The square root of 4165891 is about 2041.0514447216. The cubic root of 4165891 is about 160.9049115088.

The spelling of 4165891 in words is "four million, one hundred sixty-five thousand, eight hundred ninety-one".