7966646 has 8 divisors (see below), whose sum is σ = 12036360. Its totient is φ = 3954528.

The previous prime is 7966633. The next prime is 7966663. The reversal of 7966646 is 6466697.

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

It is a junction number, because it is equal to n+sod(n) for n = 7966597 and 7966606.

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, 14051 + ... + 14606.

It is an arithmetic number, because the mean of its divisors is an integer number (1504545).

Almost surely, 2^7966646 is an apocalyptic number.

7966646 is a deficient number, since it is larger than the sum of its proper divisors (4069714).

7966646 is a wasteful number, since it uses less digits than its factorization.

7966646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28798.

The product of its digits is 326592, while the sum is 44.

The square root of 7966646 is about 2822.5247563130. The cubic root of 7966646 is about 199.7216628218.

The spelling of 7966646 in words is "seven million, nine hundred sixty-six thousand, six hundred forty-six".