6845217 has 4 divisors (see below), whose sum is σ = 9126960. Its totient is φ = 4563476.

The previous prime is 6845207. The next prime is 6845219. The reversal of 6845217 is 7125486.

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 6845217 - 2¹⁰ = 6844193 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (6845219) 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, 1140867 + ... + 1140872.

It is an arithmetic number, because the mean of its divisors is an integer number (2281740).

Almost surely, 2^6845217 is an apocalyptic number.

It is an amenable number.

6845217 is a deficient number, since it is larger than the sum of its proper divisors (2281743).

6845217 is a wasteful number, since it uses less digits than its factorization.

6845217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2281742.

The product of its digits is 13440, while the sum is 33.

The square root of 6845217 is about 2616.3365609187. The cubic root of 6845217 is about 189.8726478068.

The spelling of 6845217 in words is "six million, eight hundred forty-five thousand, two hundred seventeen".