7928472 has 32 divisors (see below), whose sum is σ = 20865600. Its totient is φ = 2503584.

The previous prime is 7928461. The next prime is 7928497. The reversal of 7928472 is 2748297.

It is a self number, because there is not a number n which added to its sum of digits gives 7928472.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8238 + ... + 9149.

It is an arithmetic number, because the mean of its divisors is an integer number (652050).

Almost surely, 2^7928472 is an apocalyptic number.

It is an amenable number.

7928472 is an abundant number, since it is smaller than the sum of its proper divisors (12937128).

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

7928472 is a wasteful number, since it uses less digits than its factorization.

7928472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17415 (or 17411 counting only the distinct ones).

The product of its digits is 56448, while the sum is 39.

The square root of 7928472 is about 2815.7542506405. The cubic root of 7928472 is about 199.4021479789.

The spelling of 7928472 in words is "seven million, nine hundred twenty-eight thousand, four hundred seventy-two".