6660814 has 8 divisors (see below), whose sum is σ = 10261368. Its totient is φ = 3240360.

The previous prime is 6660809. The next prime is 6660859. The reversal of 6660814 is 4180666.

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

6660814 is a modest number, since divided by 814 gives 666 as remainder.

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, 44932 + ... + 45079.

It is an arithmetic number, because the mean of its divisors is an integer number (1282671).

Almost surely, 2^6660814 is an apocalyptic number.

6660814 is a deficient number, since it is larger than the sum of its proper divisors (3600554).

6660814 is a wasteful number, since it uses less digits than its factorization.

6660814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90050.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 6660814 is about 2580.8552845907. The cubic root of 6660814 is about 188.1521139494.

The spelling of 6660814 in words is "six million, six hundred sixty thousand, eight hundred fourteen".