6506213 has 4 divisors (see below), whose sum is σ = 7435680. Its totient is φ = 5576748.

The previous prime is 6506209. The next prime is 6506219. The reversal of 6506213 is 3126056.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6506213 - 2² = 6506209 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6506219) 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, 464723 + ... + 464736.

It is an arithmetic number, because the mean of its divisors is an integer number (1858920).

Almost surely, 2^6506213 is an apocalyptic number.

It is an amenable number.

6506213 is a deficient number, since it is larger than the sum of its proper divisors (929467).

6506213 is an equidigital number, since it uses as much as digits as its factorization.

6506213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 929466.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 6506213 is about 2550.7279353157. The cubic root of 6506213 is about 186.6850006794.

The spelling of 6506213 in words is "six million, five hundred six thousand, two hundred thirteen".