7928628 has 12 divisors (see below), whose sum is σ = 18500160. Its totient is φ = 2642872.

The previous prime is 7928623. The next prime is 7928651. The reversal of 7928628 is 8268297.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 7928628.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7928623) 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, 330348 + ... + 330371.

It is an arithmetic number, because the mean of its divisors is an integer number (1541680).

Almost surely, 2^7928628 is an apocalyptic number.

It is an amenable number.

7928628 is an abundant number, since it is smaller than the sum of its proper divisors (10571532).

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

7928628 is a wasteful number, since it uses less digits than its factorization.

7928628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 660726 (or 660724 counting only the distinct ones).

The product of its digits is 96768, while the sum is 42.

The square root of 7928628 is about 2815.7819517853. The cubic root of 7928628 is about 199.4034557774.

The spelling of 7928628 in words is "seven million, nine hundred twenty-eight thousand, six hundred twenty-eight".