6667220 has 24 divisors (see below), whose sum is σ = 16001664. Its totient is φ = 2285856.

The previous prime is 6667207. The next prime is 6667223. The reversal of 6667220 is 227666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6667223) 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, 23672 + ... + 23951.

It is an arithmetic number, because the mean of its divisors is an integer number (666736).

Almost surely, 2^6667220 is an apocalyptic number.

It is an amenable number.

6667220 is an abundant number, since it is smaller than the sum of its proper divisors (9334444).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6667220 is a wasteful number, since it uses less digits than its factorization.

6667220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47639 (or 47637 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 6667220 is about 2582.0960477875. The cubic root of 6667220 is about 188.2124126982.

The spelling of 6667220 in words is "six million, six hundred sixty-seven thousand, two hundred twenty".