7978696 has 32 divisors (see below), whose sum is σ = 16562880. Its totient is φ = 3572800.

The previous prime is 7978679. The next prime is 7978699. The reversal of 7978696 is 6968797.

It is not an unprimeable number, because it can be changed into a prime (7978699) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5610 + ... + 6886.

It is an arithmetic number, because the mean of its divisors is an integer number (517590).

Almost surely, 2^7978696 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7978696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8281440).

7978696 is an abundant number, since it is smaller than the sum of its proper divisors (8584184).

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

7978696 is a wasteful number, since it uses less digits than its factorization.

7978696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1365 (or 1361 counting only the distinct ones).

The product of its digits is 1143072, while the sum is 52.

The square root of 7978696 is about 2824.6585634374. The cubic root of 7978696 is about 199.8223088427.

The spelling of 7978696 in words is "seven million, nine hundred seventy-eight thousand, six hundred ninety-six".