6670885 has 16 divisors (see below), whose sum is σ = 9129456. Its totient is φ = 4635648.

The previous prime is 6670883. The next prime is 6670901. The reversal of 6670885 is 5880766.

It can be written as a sum of positive squares in 8 ways, for example, as 515524 + 6155361 = 718^2 + 2481^2 .

It is a cyclic number.

It is not a de Polignac number, because 6670885 - 2¹ = 6670883 is a prime.

It is a Duffinian number.

6670885 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6670883) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1914 + ... + 4123.

It is an arithmetic number, because the mean of its divisors is an integer number (570591).

Almost surely, 2^6670885 is an apocalyptic number.

6670885 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

6670885 is a deficient number, since it is larger than the sum of its proper divisors (2458571).

6670885 is a wasteful number, since it uses less digits than its factorization.

6670885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6072.

The product of its (nonzero) digits is 80640, while the sum is 40.

The square root of 6670885 is about 2582.8056450302. The cubic root of 6670885 is about 188.2468934431.

The spelling of 6670885 in words is "six million, six hundred seventy thousand, eight hundred eighty-five".