6669761 has 4 divisors (see below), whose sum is σ = 7622592. Its totient is φ = 5716932.

The previous prime is 6669709. The next prime is 6669769. The reversal of 6669761 is 1679666.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6669761 - 2⁶ = 6669697 is a prime.

It is a Duffinian number.

It is a congruent number.

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 in 3 ways as a sum of consecutive naturals, for example, 476405 + ... + 476418.

It is an arithmetic number, because the mean of its divisors is an integer number (1905648).

Almost surely, 2^6669761 is an apocalyptic number.

It is an amenable number.

6669761 is a deficient number, since it is larger than the sum of its proper divisors (952831).

6669761 is an equidigital number, since it uses as much as digits as its factorization.

6669761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 952830.

The product of its digits is 81648, while the sum is 41.

The square root of 6669761 is about 2582.5880430297. The cubic root of 6669761 is about 188.2363200637.

The spelling of 6669761 in words is "six million, six hundred sixty-nine thousand, seven hundred sixty-one".