6545983 has 4 divisors (see below), whose sum is σ = 6635728. Its totient is φ = 6456240.

The previous prime is 6545963. The next prime is 6545989. The reversal of 6545983 is 3895456.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6545983 - 2⁹ = 6545471 is a prime.

It is a Duffinian number.

6545983 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6545989) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44763 + ... + 44908.

It is an arithmetic number, because the mean of its divisors is an integer number (1658932).

Almost surely, 2^6545983 is an apocalyptic number.

6545983 is a deficient number, since it is larger than the sum of its proper divisors (89745).

6545983 is an equidigital number, since it uses as much as digits as its factorization.

6545983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89744.

The product of its digits is 129600, while the sum is 40.

The square root of 6545983 is about 2558.5118721632. The cubic root of 6545983 is about 187.0646063478.

The spelling of 6545983 in words is "six million, five hundred forty-five thousand, nine hundred eighty-three".