6670620 has 96 divisors (see below), whose sum is σ = 22659840. Its totient is φ = 1615680.

The previous prime is 6670607. The next prime is 6670637. The reversal of 6670620 is 260766.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5379 + ... + 6501.

It is an arithmetic number, because the mean of its divisors is an integer number (236040).

Almost surely, 2^6670620 is an apocalyptic number.

6670620 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6670620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11329920).

6670620 is an abundant number, since it is smaller than the sum of its proper divisors (15989220).

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

6670620 is a wasteful number, since it uses less digits than its factorization.

6670620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1152 (or 1144 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 6670620 is about 2582.7543437191. The cubic root of 6670620 is about 188.2444007160.

The spelling of 6670620 in words is "six million, six hundred seventy thousand, six hundred twenty".