6548391 has 8 divisors (see below), whose sum is σ = 9701360. Its totient is φ = 4365576.

The previous prime is 6548359. The next prime is 6548413. The reversal of 6548391 is 1938456.

It is not a de Polignac number, because 6548391 - 2⁵ = 6548359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6548291) 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, 121240 + ... + 121293.

It is an arithmetic number, because the mean of its divisors is an integer number (1212670).

Almost surely, 2^6548391 is an apocalyptic number.

6548391 is a deficient number, since it is larger than the sum of its proper divisors (3152969).

6548391 is a wasteful number, since it uses less digits than its factorization.

6548391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242542 (or 242536 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 6548391 is about 2558.9824149454. The cubic root of 6548391 is about 187.0875413472.

It can be divided in two parts, 654 and 8391, that added together give a triangular number (9045 = T₁₃₄).

The spelling of 6548391 in words is "six million, five hundred forty-eight thousand, three hundred ninety-one".