7987279404 has 24 divisors (see below), whose sum is σ = 20070599920. Its totient is φ = 2457624384.

The previous prime is 7987279309. The next prime is 7987279423. The reversal of 7987279404 is 4049727897.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25600099 + ... + 25600410.

Almost surely, 2^7987279404 is an apocalyptic number.

It is an amenable number.

7987279404 is an abundant number, since it is smaller than the sum of its proper divisors (12083320516).

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

7987279404 is a wasteful number, since it uses less digits than its factorization.

7987279404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51200529 (or 51200527 counting only the distinct ones).

The product of its (nonzero) digits is 7112448, while the sum is 57.

The square root of 7987279404 is about 89371.5805164035. The cubic root of 7987279404 is about 1998.9393879838.

The spelling of 7987279404 in words is "seven billion, nine hundred eighty-seven million, two hundred seventy-nine thousand, four hundred four".