6669590 has 8 divisors (see below), whose sum is σ = 12005280. Its totient is φ = 2667832.

The previous prime is 6669587. The next prime is 6669617. The reversal of 6669590 is 959666.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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, 333470 + ... + 333489.

It is an arithmetic number, because the mean of its divisors is an integer number (1500660).

Almost surely, 2^6669590 is an apocalyptic number.

6669590 is a deficient number, since it is larger than the sum of its proper divisors (5335690).

6669590 is a wasteful number, since it uses less digits than its factorization.

6669590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 666966.

The product of its (nonzero) digits is 87480, while the sum is 41.

The square root of 6669590 is about 2582.5549364922. The cubic root of 6669590 is about 188.2347113761.

The spelling of 6669590 in words is "six million, six hundred sixty-nine thousand, five hundred ninety".