7994666 has 8 divisors (see below), whose sum is σ = 12004740. Its totient is φ = 3993088.

The previous prime is 7994663. The next prime is 7994669. The reversal of 7994666 is 6664997.

It is an interprime number because it is at equal distance from previous prime (7994663) and next prime (7994669).

It can be written as a sum of positive squares in 2 ways, for example, as 5175625 + 2819041 = 2275^2 + 1679^2 .

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 7994666.

It is not an unprimeable number, because it can be changed into a prime (7994663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1400 + ... + 4236.

Almost surely, 2^7994666 is an apocalyptic number.

7994666 is a deficient number, since it is larger than the sum of its proper divisors (4010074).

7994666 is a wasteful number, since it uses less digits than its factorization.

7994666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4248.

The product of its digits is 489888, while the sum is 47.

The square root of 7994666 is about 2827.4840406269. The cubic root of 7994666 is about 199.9555401173.

The spelling of 7994666 in words is "seven million, nine hundred ninety-four thousand, six hundred sixty-six".