6669287 has 16 divisors (see below), whose sum is σ = 7584192. Its totient is φ = 5829120.

The previous prime is 6669281. The next prime is 6669293. The reversal of 6669287 is 7829666.

It is an interprime number because it is at equal distance from previous prime (6669281) and next prime (6669293).

It is a de Polignac number, because none of the positive numbers 2^k-6669287 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 (6669281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14237 + ... + 14697.

It is an arithmetic number, because the mean of its divisors is an integer number (474012).

Almost surely, 2^6669287 is an apocalyptic number.

6669287 is a deficient number, since it is larger than the sum of its proper divisors (914905).

6669287 is a wasteful number, since it uses less digits than its factorization.

6669287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 538.

The product of its digits is 217728, while the sum is 44.

The square root of 6669287 is about 2582.4962729886. The cubic root of 6669287 is about 188.2318608270.

The spelling of 6669287 in words is "six million, six hundred sixty-nine thousand, two hundred eighty-seven".