6288891 has 8 divisors (see below), whose sum is σ = 9583104. Its totient is φ = 3593640.

The previous prime is 6288889. The next prime is 6288899. The reversal of 6288891 is 1988826.

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

It is not a de Polignac number, because 6288891 - 2¹ = 6288889 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (6288899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 149715 + ... + 149756.

It is an arithmetic number, because the mean of its divisors is an integer number (1197888).

Almost surely, 2^6288891 is an apocalyptic number.

6288891 is a deficient number, since it is larger than the sum of its proper divisors (3294213).

6288891 is a wasteful number, since it uses less digits than its factorization.

6288891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299481.

The product of its digits is 55296, while the sum is 42.

The square root of 6288891 is about 2507.7661374219. The cubic root of 6288891 is about 184.5828536297.

The spelling of 6288891 in words is "six million, two hundred eighty-eight thousand, eight hundred ninety-one".