6663814 has 8 divisors (see below), whose sum is σ = 10165320. Its totient is φ = 3275376.

The previous prime is 6663809. The next prime is 6663827. The reversal of 6663814 is 4183666.

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

It is a self number, because there is not a number n which added to its sum of digits gives 6663814.

It is a congruent 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, 28119 + ... + 28354.

It is an arithmetic number, because the mean of its divisors is an integer number (1270665).

Almost surely, 2^6663814 is an apocalyptic number.

6663814 is a deficient number, since it is larger than the sum of its proper divisors (3501506).

6663814 is a wasteful number, since it uses less digits than its factorization.

6663814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56534.

The product of its digits is 20736, while the sum is 34.

The square root of 6663814 is about 2581.4364218396. The cubic root of 6663814 is about 188.1803573252.

The spelling of 6663814 in words is "six million, six hundred sixty-three thousand, eight hundred fourteen".