6538869 has 12 divisors (see below), whose sum is σ = 9942400. Its totient is φ = 4129704.

The previous prime is 6538859. The next prime is 6538879. The reversal of 6538869 is 9688356.

6538869 is digitally balanced in base 3, 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 (6538859) and next prime (6538879).

It is not a de Polignac number, because 6538869 - 2⁴ = 6538853 is a prime.

It is a super-2 number, since 2×6538869² = 85513615598322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6538859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18949 + ... + 19290.

Almost surely, 2^6538869 is an apocalyptic number.

It is an amenable number.

6538869 is a deficient number, since it is larger than the sum of its proper divisors (3403531).

6538869 is a wasteful number, since it uses less digits than its factorization.

6538869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38264 (or 38261 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

The square root of 6538869 is about 2557.1212329493. The cubic root of 6538869 is about 186.9968161735.

The spelling of 6538869 in words is "six million, five hundred thirty-eight thousand, eight hundred sixty-nine".