6995666 has 8 divisors (see below), whose sum is σ = 10749564. Its totient is φ = 3412480.

The previous prime is 6995647. The next prime is 6995683. The reversal of 6995666 is 6665996.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 6943225 + 52441 = 2635^2 + 229^2 .

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 6995666.

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, 42575 + ... + 42738.

Almost surely, 2^6995666 is an apocalyptic number.

6995666 is a deficient number, since it is larger than the sum of its proper divisors (3753898).

6995666 is a wasteful number, since it uses less digits than its factorization.

6995666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85356.

The product of its digits is 524880, while the sum is 47.

The square root of 6995666 is about 2644.9321352352. The cubic root of 6995666 is about 191.2536308707.

The spelling of 6995666 in words is "six million, nine hundred ninety-five thousand, six hundred sixty-six".