6669764 has 6 divisors (see below), whose sum is σ = 11672094. Its totient is φ = 3334880.

The previous prime is 6669709. The next prime is 6669769. The reversal of 6669764 is 4679666.

6669764 is digitally balanced in base 5, 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 only one way, i.e., 6300100 + 369664 = 2510^2 + 608^2 .

It is not an unprimeable number, because it can be changed into a prime (6669769) 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 as a sum of consecutive naturals, namely, 833717 + ... + 833724.

It is an arithmetic number, because the mean of its divisors is an integer number (1945349).

Almost surely, 2^6669764 is an apocalyptic number.

It is an amenable number.

6669764 is a deficient number, since it is larger than the sum of its proper divisors (5002330).

6669764 is a wasteful number, since it uses less digits than its factorization.

6669764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1667445 (or 1667443 counting only the distinct ones).

The product of its digits is 326592, while the sum is 44.

The square root of 6669764 is about 2582.5886238424. The cubic root of 6669764 is about 188.2363482861.

The spelling of 6669764 in words is "six million, six hundred sixty-nine thousand, seven hundred sixty-four".