7928479284 has 48 divisors (see below), whose sum is σ = 20186858496. Its totient is φ = 2401941600.

The previous prime is 7928479219. The next prime is 7928479309. The reversal of 7928479284 is 4829748297.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 867579 + ... + 876669.

It is an arithmetic number, because the mean of its divisors is an integer number (420559552).

Almost surely, 2^7928479284 is an apocalyptic number.

It is an amenable number.

7928479284 is an abundant number, since it is smaller than the sum of its proper divisors (12258379212).

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

7928479284 is a wasteful number, since it uses less digits than its factorization.

7928479284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15716 (or 15714 counting only the distinct ones).

The product of its digits is 16257024, while the sum is 60.

The square root of 7928479284 is about 89042.0085352975. The cubic root of 7928479284 is about 1994.0220904339.

The spelling of 7928479284 in words is "seven billion, nine hundred twenty-eight million, four hundred seventy-nine thousand, two hundred eighty-four".