6549983 has 4 divisors (see below), whose sum is σ = 7145448. Its totient is φ = 5954520.

The previous prime is 6549979. The next prime is 6550001. The reversal of 6549983 is 3899456.

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

It is not a de Polignac number, because 6549983 - 2² = 6549979 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 (6549923) 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, 297716 + ... + 297737.

It is an arithmetic number, because the mean of its divisors is an integer number (1786362).

Almost surely, 2^6549983 is an apocalyptic number.

6549983 is a deficient number, since it is larger than the sum of its proper divisors (595465).

6549983 is a wasteful number, since it uses less digits than its factorization.

6549983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 595464.

The product of its digits is 233280, while the sum is 44.

The square root of 6549983 is about 2559.2934571870. The cubic root of 6549983 is about 187.1027012663.

The spelling of 6549983 in words is "six million, five hundred forty-nine thousand, nine hundred eighty-three".