6690711 has 8 divisors (see below), whose sum is σ = 8967024. Its totient is φ = 4437440.

The previous prime is 6690703. The next prime is 6690721. The reversal of 6690711 is 1170966.

6690711 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6690711 - 2³ = 6690703 is a prime.

It is a super-2 number, since 2×6690711² = 89531227371042, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6690701) 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 7 ways as a sum of consecutive naturals, for example, 5070 + ... + 6251.

It is an arithmetic number, because the mean of its divisors is an integer number (1120878).

Almost surely, 2^6690711 is an apocalyptic number.

6690711 is a deficient number, since it is larger than the sum of its proper divisors (2276313).

6690711 is a wasteful number, since it uses less digits than its factorization.

6690711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11521.

The product of its (nonzero) digits is 2268, while the sum is 30.

The square root of 6690711 is about 2586.6408718645. The cubic root of 6690711 is about 188.4332001390.

The spelling of 6690711 in words is "six million, six hundred ninety thousand, seven hundred eleven".