6506943 has 8 divisors (see below), whose sum is σ = 8688768. Its totient is φ = 4331544.

The previous prime is 6506939. The next prime is 6506959. The reversal of 6506943 is 3496056.

It is a happy number.

6506943 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6506943 - 2² = 6506939 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6506963) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1780 + ... + 4022.

It is an arithmetic number, because the mean of its divisors is an integer number (1086096).

Almost surely, 2^6506943 is an apocalyptic number.

6506943 is a deficient number, since it is larger than the sum of its proper divisors (2181825).

6506943 is a wasteful number, since it uses less digits than its factorization.

6506943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3213.

The product of its (nonzero) digits is 19440, while the sum is 33.

The square root of 6506943 is about 2550.8710277080. The cubic root of 6506943 is about 186.6919824650.

The spelling of 6506943 in words is "six million, five hundred six thousand, nine hundred forty-three".