6289891 has 4 divisors (see below), whose sum is σ = 6330112. Its totient is φ = 6249672.

The previous prime is 6289883. The next prime is 6289903. The reversal of 6289891 is 1989826.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1989826 = 2 ⋅994913.

It is a cyclic number.

It is not a de Polignac number, because 6289891 - 2³ = 6289883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6289841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19875 + ... + 20188.

It is an arithmetic number, because the mean of its divisors is an integer number (1582528).

Almost surely, 2^6289891 is an apocalyptic number.

6289891 is a deficient number, since it is larger than the sum of its proper divisors (40221).

6289891 is a wasteful number, since it uses less digits than its factorization.

6289891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40220.

The product of its digits is 62208, while the sum is 43.

The square root of 6289891 is about 2507.9655101297. The cubic root of 6289891 is about 184.5926366514.

The spelling of 6289891 in words is "six million, two hundred eighty-nine thousand, eight hundred ninety-one".