7979646 has 8 divisors (see below), whose sum is σ = 15959304. Its totient is φ = 2659880.

The previous prime is 7979623. The next prime is 7979663. The reversal of 7979646 is 6469797.

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

7979646 is an admirable number.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 7979595 and 7979604.

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, 664965 + ... + 664976.

It is an arithmetic number, because the mean of its divisors is an integer number (1994913).

Almost surely, 2^7979646 is an apocalyptic number.

7979646 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7979646 is a wasteful number, since it uses less digits than its factorization.

7979646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1329946.

The product of its digits is 571536, while the sum is 48.

The square root of 7979646 is about 2824.8267203494. The cubic root of 7979646 is about 199.8302392806.

The spelling of 7979646 in words is "seven million, nine hundred seventy-nine thousand, six hundred forty-six".