6540467 has 2 divisors, whose sum is σ = 6540468. Its totient is φ = 6540466.

The previous prime is 6540451. The next prime is 6540493. The reversal of 6540467 is 7640456.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6540467 - 2⁴ = 6540451 is a prime.

It is not a weakly prime, because it can be changed into another prime (6540407) 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 as a sum of consecutive naturals, namely, 3270233 + 3270234.

It is an arithmetic number, because the mean of its divisors is an integer number (3270234).

Almost surely, 2^6540467 is an apocalyptic number.

6540467 is a deficient number, since it is larger than the sum of its proper divisors (1).

6540467 is an equidigital number, since it uses as much as digits as its factorization.

6540467 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 6540467 is about 2557.4336746043. The cubic root of 6540467 is about 187.0120479908.

It can be divided in two parts, 6540 and 467, that added together give a palindrome (7007).

The spelling of 6540467 in words is "six million, five hundred forty thousand, four hundred sixty-seven".