4289891 has 12 divisors (see below), whose sum is σ = 4663056. Its totient is φ = 3936240.

The previous prime is 4289869. The next prime is 4289893. The reversal of 4289891 is 1989824.

It is not a de Polignac number, because 4289891 - 2⁶ = 4289827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4289893) 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 11 ways as a sum of consecutive naturals, for example, 60386 + ... + 60456.

It is an arithmetic number, because the mean of its divisors is an integer number (388588).

Almost surely, 2^4289891 is an apocalyptic number.

4289891 is a deficient number, since it is larger than the sum of its proper divisors (373165).

4289891 is an equidigital number, since it uses as much as digits as its factorization.

4289891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202 (or 131 counting only the distinct ones).

The product of its digits is 41472, while the sum is 41.

The square root of 4289891 is about 2071.2052047057. The cubic root of 4289891 is about 162.4858023099.

The spelling of 4289891 in words is "four million, two hundred eighty-nine thousand, eight hundred ninety-one".