6662217 has 8 divisors (see below), whose sum is σ = 9350560. Its totient is φ = 4207680.

The previous prime is 6662209. The next prime is 6662231. The reversal of 6662217 is 7122666.

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

It is not a de Polignac number, because 6662217 - 2³ = 6662209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6662287) 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, 58384 + ... + 58497.

It is an arithmetic number, because the mean of its divisors is an integer number (1168820).

Almost surely, 2^6662217 is an apocalyptic number.

It is an amenable number.

6662217 is a deficient number, since it is larger than the sum of its proper divisors (2688343).

6662217 is a wasteful number, since it uses less digits than its factorization.

6662217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116903.

The product of its digits is 6048, while the sum is 30.

The square root of 6662217 is about 2581.1270793977. The cubic root of 6662217 is about 188.1653234902.

The spelling of 6662217 in words is "six million, six hundred sixty-two thousand, two hundred seventeen".