7978796 has 12 divisors (see below), whose sum is σ = 15957648. Its totient is φ = 3419472.

The previous prime is 7978793. The next prime is 7978807. The reversal of 7978796 is 6978797.

It is a happy number.

7978796 is an admirable number.

It is a super-2 number, since 2×7978796² = 127322371219232, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7978793) 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, 142451 + ... + 142506.

It is an arithmetic number, because the mean of its divisors is an integer number (1329804).

Almost surely, 2^7978796 is an apocalyptic number.

It is an amenable number.

7978796 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.

7978796 is a wasteful number, since it uses less digits than its factorization.

7978796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284968 (or 284966 counting only the distinct ones).

The product of its digits is 1333584, while the sum is 53.

The square root of 7978796 is about 2824.6762646364. The cubic root of 7978796 is about 199.8231436553.

Subtracting from 7978796 its reverse (6978797), we obtain a palindrome (999999).

The spelling of 7978796 in words is "seven million, nine hundred seventy-eight thousand, seven hundred ninety-six".