4083891 has 8 divisors (see below), whose sum is σ = 6223104. Its totient is φ = 2333640.

The previous prime is 4083883. The next prime is 4083899. The reversal of 4083891 is 1983804.

4083891 is digitally balanced in base 8, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (4083883) and next prime (4083899).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4083891 - 2³ = 4083883 is a prime.

It is an Ulam number.

4083891 is strictly pandigital in base 8.

It is not an unprimeable number, because it can be changed into a prime (4083899) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97215 + ... + 97256.

It is an arithmetic number, because the mean of its divisors is an integer number (777888).

Almost surely, 2^4083891 is an apocalyptic number.

4083891 is a deficient number, since it is larger than the sum of its proper divisors (2139213).

4083891 is a wasteful number, since it uses less digits than its factorization.

4083891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194481.

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 4083891 is about 2020.8639241671. The cubic root of 4083891 is about 159.8421751010.

The spelling of 4083891 in words is "four million, eighty-three thousand, eight hundred ninety-one".