4068891 has 12 divisors (see below), whose sum is σ = 5901168. Its totient is φ = 2701584.

The previous prime is 4068887. The next prime is 4068893. The reversal of 4068891 is 1988604.

It is a happy number.

It is not a de Polignac number, because 4068891 - 2² = 4068887 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4068893) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1866 + ... + 3408.

It is an arithmetic number, because the mean of its divisors is an integer number (491764).

Almost surely, 2^4068891 is an apocalyptic number.

4068891 is a deficient number, since it is larger than the sum of its proper divisors (1832277).

4068891 is a wasteful number, since it uses less digits than its factorization.

4068891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1842 (or 1839 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 4068891 is about 2017.1492260118. The cubic root of 4068891 is about 159.6462366274.

The spelling of 4068891 in words is "four million, sixty-eight thousand, eight hundred ninety-one".