7919680 has 28 divisors (see below), whose sum is σ = 18859500. Its totient is φ = 3167744.

The previous prime is 7919669. The next prime is 7919687. The reversal of 7919680 is 869197.

It can be written as a sum of positive squares in 2 ways, for example, as 5914624 + 2005056 = 2432^2 + 1416^2 .

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (7919687) 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, 12055 + ... + 12694.

Almost surely, 2^7919680 is an apocalyptic number.

It is an amenable number.

7919680 is an abundant number, since it is smaller than the sum of its proper divisors (10939820).

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

7919680 is a wasteful number, since it uses less digits than its factorization.

7919680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24766 (or 24756 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 40.

The square root of 7919680 is about 2814.1926017954. The cubic root of 7919680 is about 199.3284140524.

The spelling of 7919680 in words is "seven million, nine hundred nineteen thousand, six hundred eighty".