6669801 has 12 divisors (see below), whose sum is σ = 9792900. Its totient is φ = 4373280.

The previous prime is 6669781. The next prime is 6669809. The reversal of 6669801 is 1089666.

6669801 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 3515625 + 3154176 = 1875^2 + 1776^2 .

It is not a de Polignac number, because 6669801 - 2⁵ = 6669769 is a prime.

6669801 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (6669809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5526 + ... + 6623.

It is an arithmetic number, because the mean of its divisors is an integer number (816075).

Almost surely, 2^6669801 is an apocalyptic number.

6669801 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

It is an amenable number.

6669801 is a deficient number, since it is larger than the sum of its proper divisors (3123099).

6669801 is a wasteful number, since it uses less digits than its factorization.

6669801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12216 (or 12213 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 6669801 is about 2582.5957871878. The cubic root of 6669801 is about 188.2366963610.

The spelling of 6669801 in words is "six million, six hundred sixty-nine thousand, eight hundred one".