6287666 has 16 divisors (see below), whose sum is σ = 11759040. Its totient is φ = 2449680.

The previous prime is 6287647. The next prime is 6287713. The reversal of 6287666 is 6667826.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20261 + ... + 20568.

It is an arithmetic number, because the mean of its divisors is an integer number (734940).

Almost surely, 2^6287666 is an apocalyptic number.

6287666 is a deficient number, since it is larger than the sum of its proper divisors (5471374).

6287666 is a wasteful number, since it uses less digits than its factorization.

6287666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40849.

The product of its digits is 145152, while the sum is 41.

The square root of 6287666 is about 2507.5218842515. The cubic root of 6287666 is about 184.5708680147.

The spelling of 6287666 in words is "six million, two hundred eighty-seven thousand, six hundred sixty-six".