6459666 has 8 divisors (see below), whose sum is σ = 12919344. Its totient is φ = 2153220.

The previous prime is 6459659. The next prime is 6459679. The reversal of 6459666 is 6669546.

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

6459666 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 538300 + ... + 538311.

It is an arithmetic number, because the mean of its divisors is an integer number (1614918).

Almost surely, 2^6459666 is an apocalyptic number.

6459666 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6459666 is a wasteful number, since it uses less digits than its factorization.

6459666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1076616.

The product of its digits is 233280, while the sum is 42.

The square root of 6459666 is about 2541.5872993073. The cubic root of 6459666 is about 186.2387384149.

The spelling of 6459666 in words is "six million, four hundred fifty-nine thousand, six hundred sixty-six".