6536891 has 6 divisors (see below), whose sum is σ = 6944340. Its totient is φ = 6152096.

The previous prime is 6536879. The next prime is 6536897. The reversal of 6536891 is 1986356.

It is not a de Polignac number, because 6536891 - 2¹⁸ = 6274747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6536897) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11021 + ... + 11598.

It is an arithmetic number, because the mean of its divisors is an integer number (1157390).

Almost surely, 2^6536891 is an apocalyptic number.

6536891 is a deficient number, since it is larger than the sum of its proper divisors (407449).

6536891 is a wasteful number, since it uses less digits than its factorization.

6536891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22653 (or 22636 counting only the distinct ones).

The product of its digits is 38880, while the sum is 38.

The square root of 6536891 is about 2556.7344406489. The cubic root of 6536891 is about 186.9779588347.

The spelling of 6536891 in words is "six million, five hundred thirty-six thousand, eight hundred ninety-one".