6545687 has 2 divisors, whose sum is σ = 6545688. Its totient is φ = 6545686.

The previous prime is 6545653. The next prime is 6545689. The reversal of 6545687 is 7865456.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6545687 - 2¹⁰ = 6544663 is a prime.

Together with 6545689, it forms a pair of twin primes.

It is a Chen prime.

It is a d-powerful number, because it can be written as 6² + 5³ + 4¹¹ + 5⁹ + 6⁷ + 8³ + 7⁶ .

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6545689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3272843 + 3272844.

It is an arithmetic number, because the mean of its divisors is an integer number (3272844).

Almost surely, 2^6545687 is an apocalyptic number.

6545687 is a deficient number, since it is larger than the sum of its proper divisors (1).

6545687 is an equidigital number, since it uses as much as digits as its factorization.

6545687 is an evil number, because the sum of its binary digits is even.

The product of its digits is 201600, while the sum is 41.

The square root of 6545687 is about 2558.4540253833. The cubic root of 6545687 is about 187.0617867072.

The spelling of 6545687 in words is "six million, five hundred forty-five thousand, six hundred eighty-seven".