6545879 has 2 divisors, whose sum is σ = 6545880. Its totient is φ = 6545878.

The previous prime is 6545863. The next prime is 6545881. The reversal of 6545879 is 9785456.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6545879 - 2⁴ = 6545863 is a prime.

Together with 6545881, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6545809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3272939 + 3272940.

It is an arithmetic number, because the mean of its divisors is an integer number (3272940).

Almost surely, 2^6545879 is an apocalyptic number.

6545879 is a deficient number, since it is larger than the sum of its proper divisors (1).

6545879 is an equidigital number, since it uses as much as digits as its factorization.

6545879 is an evil number, because the sum of its binary digits is even.

The product of its digits is 302400, while the sum is 44.

The square root of 6545879 is about 2558.4915477679. The cubic root of 6545879 is about 187.0636156729.

The spelling of 6545879 in words is "six million, five hundred forty-five thousand, eight hundred seventy-nine".